I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

Replace the question mark with the correct number below.

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

A Monkey, a squirrel, and an Eagle are racing to the top of the mango tree. Assuming all these animals are in perfect shape, Which animal will reach to Banana first?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

What is harder to catch the faster you run?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?