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.

If your uncle’s sister is not your aunt, what relation is she to you?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

Can you place six X (crosses) in below board without making three in a row in any way ?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

How can you leave a room with two legs and return with six legs?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?