A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Find the next number in the series below

21 32 54 87 131 ?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Prove that the below maths equation is true.

8 + 8 = 91

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?