Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

People make me, save me, change me, raise me. What am I?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

What word is pronounced the same if you take away four of its five letters?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Can you find a five letter word that is left with only two letters if one is removed?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?