Logical Reasoning Questions with Answers (Series, Coding-Decoding, Calendar)

Question 1

What comes next in the series? 13, 21, 29, 37, 45, ?

Accepted Answer

53. The rule is: add 8 each time. So the next number is 53.

Question 2

What comes next in the series? 16, 25, 36, 49, 64, ?

Accepted Answer

81. The rule is: squares of 4, 5, 6, …. So the next number is 81.

Question 3

What comes next in the series? 1, 5, 13, 25, 41, ?

Accepted Answer

61. The rule is: the gap grows by 4: +4, +8, +12, …. So the next number is 61.

Question 4

What comes next in the series? 5, 7, 11, 17, 25, ?

Accepted Answer

35. The rule is: the gap grows by 2: +2, +4, +6, …. So the next number is 35.

Question 5

What comes next in the series? 3, 6, 12, 24, 48, ?

Accepted Answer

96. The rule is: multiply by 2 each time. So the next number is 96.

Question 6

In a certain code, CLOUD is written as FORXG. How is DATA written in that code?

Accepted Answer

GDWD. Each letter moves 3 places forward in the alphabet, so DATA → GDWD.

Question 7

In a certain code, CODE is written as EQFG. How is BRAIN written in that code?

Accepted Answer

DTCKP. Each letter moves 2 places forward in the alphabet, so BRAIN → DTCKP.

Question 8

In a certain code, BRAIN is written as EUDLQ. How is TAMIL written in that code?

Accepted Answer

WDPLO. Each letter moves 3 places forward in the alphabet, so TAMIL → WDPLO.

Question 9

In a certain code, LOGIC is written as MPHJD. How is DATA written in that code?

Accepted Answer

EBUB. Each letter moves 1 place forward in the alphabet, so DATA → EBUB.

Question 10

In a certain code, LOGIC is written as MPHJD. How is TAMIL written in that code?

Accepted Answer

UBNJM. Each letter moves 1 place forward in the alphabet, so TAMIL → UBNJM.

Question 11

1 January 2012 was a Sunday. What day of the week was 26 April 2012?

Accepted Answer

Thursday. Count the days from 1 January to 26 April (remember it's a leap year), take the remainder when divided by 7, and move forward that many weekdays from Sunday. The answer is Thursday.

Question 12

1 January 2026 was a Thursday. What day of the week was 13 December 2026?

Accepted Answer

Sunday. Count the days from 1 January to 13 December (remember it isn't a leap year), take the remainder when divided by 7, and move forward that many weekdays from Thursday. The answer is Sunday.

Question 13

1 January 2023 was a Sunday. What day of the week was 19 July 2023?

Accepted Answer

Wednesday. Count the days from 1 January to 19 July (remember it isn't a leap year), take the remainder when divided by 7, and move forward that many weekdays from Sunday. The answer is Wednesday.

Question 14

1 January 2016 was a Friday. What day of the week was 23 October 2016?

Accepted Answer

Sunday. Count the days from 1 January to 23 October (remember it's a leap year), take the remainder when divided by 7, and move forward that many weekdays from Friday. The answer is Sunday.

Question 15

1 January 2024 was a Monday. What day of the week was 8 June 2024?

Accepted Answer

Saturday. Count the days from 1 January to 8 June (remember it's a leap year), take the remainder when divided by 7, and move forward that many weekdays from Monday. The answer is Saturday.

Question 16

What is the binary representation of the decimal number 156?

Accepted Answer

10011100. Divide by 2 repeatedly and read the remainders from bottom to top: 156 = 10011100 in binary.

Question 17

What is the decimal value of the binary number 1101000?

Accepted Answer

104. Add the place values of the 1 bits: 64 + 32 + 8 = 104.

Question 18

What is the binary representation of the decimal number 18?

Accepted Answer

10010. Divide by 2 repeatedly and read the remainders from bottom to top: 18 = 10010 in binary.

Question 19

What is the decimal value of the binary number 1110000?

Accepted Answer

112. Add the place values of the 1 bits: 64 + 32 + 16 = 112.

Question 20

What is the decimal value of the binary number 11000010?

Accepted Answer

194. Add the place values of the 1 bits: 128 + 64 + 2 = 194.

Logical Reasoning Questions with Answers (Series, Coding-Decoding, Calendar)

Q1. What comes next in the series? 13, 21, 29, 37, 45, ?

Q2. What comes next in the series? 16, 25, 36, 49, 64, ?

Q3. What comes next in the series? 1, 5, 13, 25, 41, ?

Q4. What comes next in the series? 5, 7, 11, 17, 25, ?

Q5. What comes next in the series? 3, 6, 12, 24, 48, ?

Q6. In a certain code, CLOUD is written as FORXG. How is DATA written in that code?

Q7. In a certain code, CODE is written as EQFG. How is BRAIN written in that code?

Q8. In a certain code, BRAIN is written as EUDLQ. How is TAMIL written in that code?

Q9. In a certain code, LOGIC is written as MPHJD. How is DATA written in that code?

Q10. In a certain code, LOGIC is written as MPHJD. How is TAMIL written in that code?

Q11. 1 January 2012 was a Sunday. What day of the week was 26 April 2012?

Q12. 1 January 2026 was a Thursday. What day of the week was 13 December 2026?

Q13. 1 January 2023 was a Sunday. What day of the week was 19 July 2023?

Q14. 1 January 2016 was a Friday. What day of the week was 23 October 2016?

Q15. 1 January 2024 was a Monday. What day of the week was 8 June 2024?

Q16. What is the binary representation of the decimal number 156?

Q17. What is the decimal value of the binary number 1101000?

Q18. What is the binary representation of the decimal number 18?

Q19. What is the decimal value of the binary number 1110000?

Q20. What is the decimal value of the binary number 11000010?