Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

What is the centre of gravity?

Why are all black people so quick ?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Which digit occurred maximum times between the number 1 and 1000?

What demands an answer, but asks no questions

What time is it when an elephant sits on a fence?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?