You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

Can you find out the remainder when 3^300 is divided by 5?

John is on an island and there are three crates of fruit that have washed up in front of him. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges.

Each crate is labelled. One reads 'apples', one reads 'oranges', and one reads 'apples and oranges'. He know that NONE of the crates have been labeled correctly - they are all wrong.

If he can only take out and look at just one of the pieces of fruit from just one of the crates, how can he label all of the crates correctly?

Different lights make me strange by changing me into different sizes. What am I?

Through your logical capabilities, can you make 7 an even?

What always comes into a house through the keyhole?

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

There are forty elephants and they have forty-fore heads. How can this be possible?

How many bananas can you eat if your stomach is empty?

How is a fly different from a mosquito?