If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

John Went to the nearby store in a Mall to buy something for her home. Below is the conversation between the two:

John: How much for the one?
Shopkeeper: It is $2
John: How much for the Eleven?
Shopkeeper: It is $4
John: How much for the Hundred?
Shopkeeper: It is $6.

What is John buying?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

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 ?

what's the probability of getting a king or a queen from a pack of 52 cards?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

I can turn polar bears white.
I can make anyone dance.
I can make everyone cry
I can make your hands clap
I can make you thin.
I can make you smile.
I can make you smile

Can you guess the riddle?