Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Who is that with a neck and no head, two arms and no hands? What is it?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

I make two people out of one. What am I?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

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

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?