Identify the hidden meaning behind this picture?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

Considering the below equation:

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

Then, I + II + III = ?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

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?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

How is a fly different from a mosquito?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=