A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

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

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?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

They are three errirs in this question. Can you find them?

What always comes into a house through the keyhole?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?