Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

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

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

I always drive my customer away.

Who am I?

Prove that twice of ten is the same as twice of eleven.