who is silent in the parliament?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Can you find out the total number of triangles in the given figure?

What is the word or phrase below?
R | E | A | D

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

Can you replace the question mark with the correct number?

Solve this riddle by finding the odd one out from the rest.

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?