What is the word or phrase?

Give it food and it will live; give it water and it will die.

Find the missing number in the sequence below:

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

What Word am I Looking For ?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Three logicians went to bar for having a drink. The bar person asks the logicians "Do they all want to have the drink?". The first logician replied, " I don't know". The second logician replied, " I don't know". What is the reply of the last logician?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

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