There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Name a key which is hardest to turn.

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

Count the number of squares in the picture below.

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

In The Image Below Which clock is the odd one out?