If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

Next Number in the Series,

5, 16, 49, 104, ?

If your uncle’s sister is not your aunt, what relation is she to you?

I am the fastest animal but cannot climb the tree. What am I?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What am I?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?