How many bananas can you eat if your stomach is empty?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What can go through glass without breaking it?

What do you think with the below Picture ?