Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

How many words can a pen with half refill write?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

Replace the question mark with the correct number in below Picture:

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

You need to arrange three 7 and mathematical symbols to form number 1?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?