Can you place six X (crosses) in below board without making three in a row in any way ?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

The more of this there is, the less you see. What is it?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

Solve the rebus riddle in the picture below.