A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Which number should replace the question mark?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

How many triangles are there in the picture below?

I add 5 to 9 and get 2. The answer is correct, so what am I?

What runs around the whole yard without moving?