Why 1729 is a magic number? Answer Logically.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

What 5-letter word typed in all capital letters can be read the same upside down?

How many times do a clock's hands overlap in a day ?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

Move three sticks of the spiral below to form a square.

You are a thief and you are being punished for your crime. People have tied your head down on a tree with a rope that has been anchored in the ground. A candle is burning below the rope which is slowly burning it away. Just below your head, a Lion has been left loose and is waiting for you to drop down on the ground so he can have you as his lunch.

You have to survive the scenario. How will you do it?

How many times can you subtract the number 5 from 25?

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