Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

Find the next number in the following series:
6, 14, 26, 98, __?

A newspaper is supposed to have 60 pages.Pages 14 and 21 are missing from the newspaper.

Can you tell me , Which other pages won't be there as well ?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

The more you take me, the more you leave me behind.
Who Am I?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

What kind of storm is always in a rush?

How can you make number one disappear by adding something to it?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?