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

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

Bobby and Wilbur decided to take their respective car out of the garage and race. None of them cheated and they both stood at the start time and decided to cover a distance in full throttle. The first to reach the mark was to be declared the winner.

Upon reaching the finishing mark, they found out that Bobby's car was 1.2 times faster than Wilbur's. Now, Wilbur had reached the mark about 1 minute and 30 seconds later than Bobby. Bobby's car reached the mark of 60 MPH on average.

Can you calculate the distance between the starting mark and the final mark with the help of the given data?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

Find the next number in the sequence

5 12 24 36 ?

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

Can you solve the below rebus?