{
  "title": "Calendar Problems - Grade 4 CBSE",
  "total_questions": 100,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "How many days are in a week?", "options": {"A": "5", "B": "6", "C": "7", "D": "8"}, "correct_answer": "C"},
    {"id": 2, "difficulty": "easy", "question": "How many months are in a year?", "options": {"A": "10", "B": "11", "C": "12", "D": "13"}, "correct_answer": "C"},
    {"id": 3, "difficulty": "easy", "question": "Which month comes after March?", "options": {"A": "February", "B": "April", "C": "May", "D": "June"}, "correct_answer": "B"},
    {"id": 4, "difficulty": "easy", "question": "How many days are in April?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "C"},
    {"id": 5, "difficulty": "easy", "question": "Which day comes after Tuesday?", "options": {"A": "Monday", "B": "Wednesday", "C": "Thursday", "D": "Friday"}, "correct_answer": "B"},
    {"id": 6, "difficulty": "easy", "question": "How many days are in February in a non-leap year?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "A"},
    {"id": 7, "difficulty": "easy", "question": "Which month comes before August?", "options": {"A": "June", "B": "July", "C": "September", "D": "October"}, "correct_answer": "B"},
    {"id": 8, "difficulty": "easy", "question": "How many weeks are in a year?", "options": {"A": "50", "B": "51", "C": "52", "D": "53"}, "correct_answer": "C"},
    {"id": 9, "difficulty": "easy", "question": "Which day comes before Friday?", "options": {"A": "Wednesday", "B": "Thursday", "C": "Saturday", "D": "Sunday"}, "correct_answer": "B"},
    {"id": 10, "difficulty": "easy", "question": "How many days are in December?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "D"},
    {"id": 11, "difficulty": "easy", "question": "Which month is the first month of the year?", "options": {"A": "January", "B": "February", "C": "March", "D": "April"}, "correct_answer": "A"},
    {"id": 12, "difficulty": "easy", "question": "How many days are in June?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "C"},
    {"id": 13, "difficulty": "easy", "question": "Which day is the last day of the week?", "options": {"A": "Friday", "B": "Saturday", "C": "Sunday", "D": "Monday"}, "correct_answer": "C"},
    {"id": 14, "difficulty": "easy", "question": "How many months have 31 days?", "options": {"A": "5", "B": "6", "C": "7", "D": "8"}, "correct_answer": "C"},
    {"id": 15, "difficulty": "easy", "question": "Which month comes after October?", "options": {"A": "September", "B": "November", "C": "December", "D": "January"}, "correct_answer": "B"},
    {"id": 16, "difficulty": "easy", "question": "How many days are in September?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "C"},
    {"id": 17, "difficulty": "easy", "question": "Which day comes after Sunday?", "options": {"A": "Friday", "B": "Saturday", "C": "Monday", "D": "Tuesday"}, "correct_answer": "C"},
    {"id": 18, "difficulty": "easy", "question": "How many days are in November?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "C"},
    {"id": 19, "difficulty": "easy", "question": "Which month is the 8th month?", "options": {"A": "July", "B": "August", "C": "September", "D": "October"}, "correct_answer": "B"},
    {"id": 20, "difficulty": "easy", "question": "How many days are in January?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "D"},
    
    {"id": 21, "difficulty": "medium", "question": "If today is Monday, what day will it be after 10 days?", "options": {"A": "Thursday", "B": "Friday", "C": "Saturday", "D": "Sunday"}, "correct_answer": "A"},
    {"id": 22, "difficulty": "medium", "question": "How many days are there from March 15 to March 25?", "options": {"A": "9", "B": "10", "C": "11", "D": "12"}, "correct_answer": "C"},
    {"id": 23, "difficulty": "medium", "question": "If January 1 is Wednesday, what day is January 15?", "options": {"A": "Monday", "B": "Tuesday", "C": "Wednesday", "D": "Thursday"}, "correct_answer": "C"},
    {"id": 24, "difficulty": "medium", "question": "How many weeks and days are in 45 days?", "options": {"A": "6 weeks 3 days", "B": "6 weeks 4 days", "C": "7 weeks 1 day", "D": "7 weeks 2 days"}, "correct_answer": "A"},
    {"id": 25, "difficulty": "medium", "question": "If today is Friday, what day was it 8 days ago?", "options": {"A": "Wednesday", "B": "Thursday", "C": "Friday", "D": "Saturday"}, "correct_answer": "B"},
    {"id": 26, "difficulty": "medium", "question": "How many days are between May 10 and May 20?", "options": {"A": "9", "B": "10", "C": "11", "D": "12"}, "correct_answer": "B"},
    {"id": 27, "difficulty": "medium", "question": "If March has 5 Sundays, how many days are in that March?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "D"},
    {"id": 28, "difficulty": "medium", "question": "How many Mondays are in April if April 1 is Monday?", "options": {"A": "4", "B": "5", "C": "6", "D": "7"}, "correct_answer": "B"},
    {"id": 29, "difficulty": "medium", "question": "If today is January 25, what date will it be in 15 days?", "options": {"A": "February 8", "B": "February 9", "C": "February 10", "D": "February 11"}, "correct_answer": "B"},
    {"id": 30, "difficulty": "medium", "question": "How many complete weeks are in 100 days?", "options": {"A": "12", "B": "13", "C": "14", "D": "15"}, "correct_answer": "C"},
    {"id": 31, "difficulty": "medium", "question": "If December 25 is Monday, what day is January 1?", "options": {"A": "Friday", "B": "Saturday", "C": "Sunday", "D": "Monday"}, "correct_answer": "D"},
    {"id": 32, "difficulty": "medium", "question": "How many days from August 15 to September 5?", "options": {"A": "20", "B": "21", "C": "22", "D": "23"}, "correct_answer": "B"},
    {"id": 33, "difficulty": "medium", "question": "If a month has 4 complete weeks, how many days does it have?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "A"},
    {"id": 34, "difficulty": "medium", "question": "How many Tuesdays in February of a leap year if Feb 1 is Tuesday?", "options": {"A": "4", "B": "5", "C": "6", "D": "7"}, "correct_answer": "B"},
    {"id": 35, "difficulty": "medium", "question": "If today is March 10, what date was it 3 weeks ago?", "options": {"A": "February 17", "B": "February 18", "C": "February 19", "D": "February 20"}, "correct_answer": "C"},
    {"id": 36, "difficulty": "medium", "question": "How many days from June 20 to July 10?", "options": {"A": "19", "B": "20", "C": "21", "D": "22"}, "correct_answer": "B"},
    {"id": 37, "difficulty": "medium", "question": "If November has 5 Thursdays, how many days are in that November?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "C"},
    {"id": 38, "difficulty": "medium", "question": "How many weekends (Saturday + Sunday) in April?", "options": {"A": "8", "B": "9", "C": "10", "D": "11"}, "correct_answer": "C"},
    {"id": 39, "difficulty": "medium", "question": "If today is October 15, what date will it be in 4 weeks?", "options": {"A": "November 10", "B": "November 11", "C": "November 12", "D": "November 13"}, "correct_answer": "C"},
    {"id": 40, "difficulty": "medium", "question": "How many school days (Monday-Friday) in February of non-leap year?", "options": {"A": "18", "B": "19", "C": "20", "D": "21"}, "correct_answer": "C"},
    
    {"id": 81, "difficulty": "hard", "question": "If January 1, 2023 is Sunday, what day is January 1, 2024?", "options": {"A": "Sunday", "B": "Monday", "C": "Tuesday", "D": "Wednesday"}, "correct_answer": "B"},
    {"id": 82, "difficulty": "hard", "question": "How many days from March 15 to June 15 in a non-leap year?", "options": {"A": "90", "B": "91", "C": "92", "D": "93"}, "correct_answer": "C"},
    {"id": 83, "difficulty": "hard", "question": "If February 14 is Wednesday in a leap year, what day is March 14?", "options": {"A": "Wednesday", "B": "Thursday", "C": "Friday", "D": "Saturday"}, "correct_answer": "D"},
    {"id": 84, "difficulty": "hard", "question": "How many complete months have exactly 4 weeks?", "options": {"A": "0", "B": "1", "C": "2", "D": "3"}, "correct_answer": "A"},
    {"id": 85, "difficulty": "hard", "question": "If Christmas (Dec 25) is Monday, what day is New Year (Jan 1)?", "options": {"A": "Friday", "B": "Saturday", "C": "Sunday", "D": "Monday"}, "correct_answer": "D"},
    {"id": 86, "difficulty": "hard", "question": "How many days from August 20 to December 15?", "options": {"A": "115", "B": "116", "C": "117", "D": "118"}, "correct_answer": "C"},
    {"id": 87, "difficulty": "hard", "question": "If a year has 53 Sundays, what kind of year is it?", "options": {"A": "Leap year starting Sunday", "B": "Leap year starting Monday", "C": "Non-leap year starting Sunday", "D": "Non-leap year starting Monday"}, "correct_answer": "A"},
    {"id": 88, "difficulty": "hard", "question": "How many Mondays in a year that has 365 days and starts on Tuesday?", "options": {"A": "52", "B": "53", "C": "54", "D": "55"}, "correct_answer": "A"},
    {"id": 89, "difficulty": "hard", "question": "If Diwali is October 24 and Christmas is December 25, how many days between them?", "options": {"A": "61", "B": "62", "C": "63", "D": "64"}, "correct_answer": "B"},
    {"id": 90, "difficulty": "hard", "question": "How many complete weeks and extra days in 500 days?", "options": {"A": "71 weeks 3 days", "B": "71 weeks 4 days", "C": "72 weeks 1 day", "D": "72 weeks 2 days"}, "correct_answer": "A"},
    {"id": 91, "difficulty": "hard", "question": "If Republic Day (Jan 26) is Thursday, what day is Independence Day (Aug 15)?", "options": {"A": "Monday", "B": "Tuesday", "C": "Wednesday", "D": "Thursday"}, "correct_answer": "B"},
    {"id": 92, "difficulty": "hard", "question": "How many days from April 10 to September 10 in a leap year?", "options": {"A": "152", "B": "153", "C": "154", "D": "155"}, "correct_answer": "B"},
    {"id": 93, "difficulty": "hard", "question": "If a month has 5 Fridays and 5 Saturdays, how many days does it have?", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "D"},
    {"id": 94, "difficulty": "hard", "question": "How many weekend days in the first 100 days of a year?", "options": {"A": "26", "B": "27", "C": "28", "D": "29"}, "correct_answer": "C"},
    {"id": 95, "difficulty": "hard", "question": "If today is day 1 and it's Monday, what day will it be on day 100?", "options": {"A": "Monday", "B": "Tuesday", "C": "Wednesday", "D": "Thursday"}, "correct_answer": "C"},
    {"id": 96, "difficulty": "hard", "question": "How many months have at least 30 days in a leap year?", "options": {"A": "10", "B": "11", "C": "12", "D": "13"}, "correct_answer": "B"},
    {"id": 97, "difficulty": "hard", "question": "If January has 5 Sundays, 5 Mondays, and 5 Tuesdays, what day does February 1 start on?", "options": {"A": "Sunday", "B": "Monday", "C": "Tuesday", "D": "Wednesday"}, "correct_answer": "D"},
    {"id": 98, "difficulty": "hard", "question": "How many days from the 100th day to the 200th day of a non-leap year?", "options": {"A": "99", "B": "100", "C": "101", "D": "102"}, "correct_answer": "B"},
    {"id": 99, "difficulty": "hard", "question": "If a year starts on Friday and is not a leap year, how many Fridays are in that year?", "options": {"A": "52", "B": "53", "C": "54", "D": "55"}, "correct_answer": "B"},
    {"id": 100, "difficulty": "hard", "question": "How many complete calendar months (with all days) are in 400 days?", "options": {"A": "12", "B": "13", "C": "14", "D": "15"}, "correct_answer": "B"}
  ]
}