Move four matchsticks to the below square to form three squares?

What Time Should the last watch show in the below figure?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

It is always ahead of me yet I can never see it. What is it?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?