What is the riddle which can be asked all day with a different correct answer each time.

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What can you catch but never throw?

Can you guess the name of the month by looking the below rebus ?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

What breaks yet never falls, and what falls yet never breaks?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?