A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

The cream is heavier than Milk. True or False?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

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

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

what does the below rebus mean?