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.

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Can you find the missing piece of the Porsche?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

If eleven plus two equals one, what does nine plus five equal?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

Move four matchsticks to the below square to form three squares?

What goes up but never comes down?