How many times in a given day, minutes and hour clock comes in a straight line ?

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

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Spot 5 differences in two Christmas tree below:

If it took eight men ten hours to build a wall, how long would it take four men to build it?

What word begins and ends with an E, but has only one letter?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

Count the squares in the matchstick puzzle below?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??