How can you make a TV, a bed, a dog, and a car liquid?

Find the missing number in the sequence 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?

What is wrong in the below Picture?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

How many triangles can you find in this given picture?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Prove that twice of ten is the same as twice of eleven.

A couple went on a climbing trip. But only the husband returned from the vacation and said that his wife slipped off while climbing and died. On investigating, the local sheriff arrested him saying, 'Your travel agent called. You murdered your wife.'

The man did not inform anyone about the trip. Then how was the agent so sure that it was a murder?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?