Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

What does this rebus means ?

PROG WORKRESS

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

How is the moon similar to a dollar?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?