What is the next number in this series?

4,12,84,3612....

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

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?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

Why is 6 afraid of 7?