Nobel School System

In a new Engineering Hostels containing 100 rooms. Khan was hired to paint the numbers 1 to 100 on the doors.
How many times will khan have to paint the number eight ?

How can you add eight 8's to get the number 1,000? (only use addition)

The maker doesn't want it; the buyer doesn't use it; and the user doesn't see it.

What is it?

Sports day Noble School 2016

A farmer has to take a hen, a fox, and some corn across a river. The farmer can only take one thing across at a time. Unless the farmer's present the fox will eat the hen and the hen eat the corn. How is it done?

Find three positive whole numbers that have the same answer added together or when multiplied together.

Solve it if you are genius................ Take 9 from 6, 10 from 9, 50 from 40 and leave 6.

What is that you will break every time you name it?

At a conference, 12 members shook hands with each other before & after the meeting. How many total number of hand shakes occurred?
100
132
145
144
121