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

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Why is it against the law for a man living in Delhi to be buried in Mumbai?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Can you divide the below-given shape into four equal and identical pieces?

A spaceship was lost. The detective was given a piece of paper. This was the location of the spaceship! This is what the slip had scribbled on it:
Juice, Umbrella, Potato, Ice, Tomato, Elephant, Rice.

Where is the spaceship?

How is the moon similar to a dollar?