I am an odd number. Take away a letter and I become even. What number am I?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What came first, the chicken or the egg?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

I always drive my customer away.

Who am I?