See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

People put me on the table and cut me but do not eat me. What am I?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

No matter how little or how much you use me, you change me every month. What am I?

What is the largest number you can write with just 3 digits?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?