You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Count the number of triangles in the below picture?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

who is silent in the parliament?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

If an electric train is travelling south, then which way is the smoke going?