Can you find out the total number of triangles in the given figure?

Move three sticks of the spiral below to form a square.

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

John was piloting a plane behind a car but was never able to overtake it. Why?

What can jump higher than a building?

What does this simple rebus mean?

When it's bad luck to meet a black cat?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

What's the only room from which no one can enter or leave