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

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

If eleven plus two equals one, what does nine plus five equal?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

What does it mean?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

I am lying and I always lie. Tell me whether I am lying or telling the truth.