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 ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

I travel all around the world but always stay in the corner. What am I?

Why is 6 afraid of 7?

By what process could you make a 'Tea-Table' into food?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

I don't get anymore wetter, no matter how much rain falls on me.

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?