Why do people go to bed?

How many letters are in the alphabet?

Can you find the hidden animal in the picture below?

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?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

If 1+9+8=1, what is 2+8+9?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?