By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

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

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 nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

I look at you, you look at me I raise my right, you raise your left. What am I?

If two's company, and three's a crowd, then whats four and five ?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?