What is black when you buy it, red when you use it, and gray when you throw it away?

What do you call a fish without an eye?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

What is the fastest way to double your money?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

What month of the year has 28 days?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

Can you identify if it's a murder or a suicide ?