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 does an Island and the letter T have in common?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?