Why is it very easy to weigh a fish?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

What has no start, end, or centre?

Prove that twice of ten is the same as twice of eleven.

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

What do you call a fish without an eye?

Forwards I am heavy, backward I am not. What am I?

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

What seven-letter word has hundreds of letters in it?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?