What came first, the chicken or the egg?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Which word does the below Plexor means ?

What is so fragile that saying its name breaks it?

What brings you down but never up?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

How many bananas can you eat if your stomach is empty?

Can you name four days which start with the letter 'T'?