What do you get if you add 2 to 100 four times?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

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?

O_er_t_o_

Complete the missing letters of the given word.

What has a bottom at the top?

Count the squares in the matchstick puzzle below?

Identify the 10 differences between the two given pictures.

Why 1729 is a magic number? Answer Logically.

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?

A guard is positioned at the one side of the bridge saying ‘A’. His task is to shoot all those who try to leave from ‘A’ to the other side and say ‘B’. He also need to welcome the person who comes from another side ‘B’ to his side ‘A’. The guard comes out of his post every 1 hour and looks down the bridge for any people trying to leave. You are at side ‘A’ and wish to go to another side ‘B’. you also know that it would take 1:45 hr to cross the bridge. How will you cross the bridge?