How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

What word is represented by this rebus?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

What is more useful when it is broken?

By using 'because' continuously three times, can you make an English statement ?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

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?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?