If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Why is the longest human nose just 11 inches?

In the picture given below, can you find out which digit will take place of the question mark?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

I am white when I am dirty, and black when I am clean. What am I?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

You can hear me, but you can't touch or see me.

What am I?