Can you count the number of matches in the picture below ?

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

? : 3839 :: 11 : 1209

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

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

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

Considering the below equation:

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

Then, I + II + III = ?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C