You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

Can you find the six hidden animals in the picture below?

Before Mount Everest was discovered, what was the highest mountain in the world?

Can you find a five letter word that is left with only two letters if one is removed?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

If 21x = 79x, what is the value of x?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

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?