By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

No matter how little or how much you use me, you change me every month. What am I?

I am quite hot but become too cold if you remove the first two letters. What am I?

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?

In the four images below, can you find the odd one out?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

John was piloting a plane behind a car but was never able to overtake it. Why?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?