Eight of us go fourth, not back, to protect our king from an attack. What are we?

How can you make number one disappear by adding something to it?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Solve the counting riddle by identifying the number of triangles in the given picture.

Find the number of squares in the below-given picture.

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

A man dies of old age on his 25 birthday. How is this possible?