If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

Solve the mathematical equation in the picture below.

Can you solve below mathematical equation?

2^1234 - 2^1233

What kind of tree can you carry in your hand?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

O_er_t_o_

Complete the missing letters of the given word.

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

What jumps when it walks and sits when it stands?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?