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?

Take one out and scratch my head, I am now black but once was red. What am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

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

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?