I have teeth but i don't bite. Who Am I ?

What word does this rebus represent?

meta meta
meta meta

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

The dirtier I get, the whiter I look. Who am I?

What does this rebus means ?

PROG WORKRESS

You are a cab driver who pools passengers. You pick 3 people from a destination and drop 1 after an hour. 2 people climb aboard at the same time and you drop 3 at the next destination. After some time, you pick 2 passengers only to drop 1 after a short distance where 3 more passengers climb up the cab. You leave the rest of the passengers one by one to their destination and then come back home.

Can you tell the eye color of the cab driver?

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

What is 3/7 chicken, 2/3 cat and 2/4 goat?