If eleven plus two equals one, what does nine plus five equal?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

What do you call a fish without an eye?