Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

What jumps when it walks and sits when it stands?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

Can you find a rabbit in the given picture?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

Can you count the number of squares in the figure below?

In the picture given below, can you find out which digit will take place of the question mark?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

A man dies of old age on his 25 birthday. How is this possible?