Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Can you replace the question mark with the correct number?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

If 1+9+8=1, what is 2+8+9?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

What do you call a fish without an eye?

Where do fish keep their money?