Can you write down eight eights so that they add up to one thousand?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

A bomb exploded in a room full of married couples and no one died. How?

There is a circular car race track of 10km. There are two cars, Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100 m/seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5 hours all three stop moving.
What is the total distance covered by the bug?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

In the four images below, can you find the odd one out?

What goes up but never comes down?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

What will you call your mother's brother's brother-in-law?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.