Can you solve the below tricky visual equation?

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?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Spot the cat in the picture below

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

I am quite hot but become too cold if you remove the first two letters. What am I?

What does this rebus picture identify?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?