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Calendar Problems - Advanced Level: calendar puzzles ADVANCED

Level up your calendar problems skills with this challenging mix. 20 advanced-level problems await in Worksheet 24 of 30. Focus area: calendar puzzles. Learn day determination, month puzzles, year logic through systematic practice. Designed for advanced learners seeking complex scenarios and multi-step problems.

📝 Worksheet 24 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Advanced level

What you'll learn in this worksheet:
Your progress through Calendar Problems
Worksheet 24 of 30 (80% complete)

Question 1

If the days of the week are coded as {'Monday': 'Zeta', 'Tuesday': 'Alpha', 'Wednesday': 'Gamma', 'Thursday': 'Delta', 'Friday': 'Theta', 'Saturday': 'Epsilon', 'Sunday': 'Omega'}, what is the code for Friday?
Friday is coded as Theta.
coding, decoding, bank

Question 2

What day of the week was 15 July 2012?
Using calendar calculation, 15 July 2012 was a Sunday.
basic, day-finding

Question 3

If the days of the week are coded as {'Monday': 'Zeta', 'Tuesday': 'Alpha', 'Wednesday': 'Gamma', 'Thursday': 'Delta', 'Friday': 'Theta', 'Saturday': 'Epsilon', 'Sunday': 'Omega'}, what is the code for Thursday?
Thursday is coded as Delta.
coding, decoding, bank

Question 4

How many days are there from the beginning of February to the end of June in 2013?
From February to June in 2013: 150 days total.
basic, counting

Question 5

If today is Thursday, what day will it be 16 days later?
Starting from Thursday (3), after 16 days: (3 + 16) mod 7 = 5 = Saturday
basic, calculation

Question 6

How many odd days are there between 1 January 1957 and 1 January 2007 (excluding the start date)?
Years from 1957 to 2006 inclusive. Total days = 18262. Odd days = 18262 mod 7 = 6
odd-days, ssc, advanced

Question 7

If 6 August 2003 was a Wednesday, what day will 16 August 2003 be?
The gap is 10 days. 10 mod 7 = 3 days shift. Wednesday + 3 days = Saturday
date-difference, shift

Question 8

How many days are there between 9 January 2024 and 27 July 2025?
The difference between 9 January 2024 and 27 July 2025 is 565 days
difference, calculation

Question 9

Which year before 2014 had the exact same calendar as 2014?
The calendar repeats when January 1 falls on the same day and leap status matches. 2003 satisfies this.
calendar-cycle, repeat, advanced

Question 10

How many odd days are there from 01-01-1990 to 25-06-1991 (inclusive)? (Note: Odd days = remainder when total days are divided by 7)
Total days = 541. Odd days = 541 mod 7 = 2.
odd-days, ssc, railways

Question 11

What day of the week was 3 November 2099?
Using Zeller's congruence: 3/11/2099 = Tuesday
zeller, direct-calculation

Question 12

How many weekend days (Saturdays and Sundays combined) are there in the year 2005?
Year 2005 has 53 Saturdays and 52 Sundays, totaling 105 weekend days.
weekends, algorithmic, calendar

Question 13

Is 2041 a leap year?
2041 is not a leap year because it's not divisible by 4
leap-year, basic

Question 14

If today is Thursday, what day will it be 16 days later?
Starting from Thursday (3), after 16 days: (3 + 16) mod 7 = 5 = Saturday
basic, calculation

Question 15

How many even dates are there in September 2027?
September 2027 has 30 days, of which 15 are even dates
counting, basic

Question 16

What is the date of the 3rd Sunday in April 2012?
The 3rd Sunday of April 2012 falls on 15-04-2012.
nth, weekday, calendar

Question 17

What is the fiscal year for the date 17-02-2021 (assuming April-March fiscal year)?
Fiscal year starts in April. Since month is 2 (February), it belongs to FY2020-2021.
fiscal, international, calendar

Question 18

How many odd days are there from 01-01-2015 to 15-09-2020 (inclusive)? (Note: Odd days = remainder when total days are divided by 7)
Total days = 2085. Odd days = 2085 mod 7 = 6.
odd-days, ssc, railways

Question 19

What is the date of the 2nd Thursday in September 2026?
The Thursdays in September 2026 fall on: 3, 10, 17, 24. The 2nd one is 10.
nth-weekday, date-finding

Question 20

How many odd days are there between 1 January 1991 and 1 January 1997 (excluding the start date)?
Years from 1991 to 1996 inclusive. Total days = 2192. Odd days = 2192 mod 7 = 1
odd-days, ssc, advanced
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