In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

Can you count the number of blocks in the picture below?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

How can you tell a raw egg from a hard-boiled egg?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

What is the next number in this series?

4,12,84,3612....