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?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

Who is that with a neck and no head, two arms and no hands? What is it?

Name a key which is hardest to turn.

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?