I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

John had a bag containing colourful marbles. The colours are red, green and blue. The total number of marbles he had in his bag was 60. There are 4 times as many red marbles as green marbles. 6 more blue marbles than green marbles. How many marbles of each colour did John have?

What has many keys but can’t open a single lock?

Find the number of squares in the below-given picture.

Who is that with a neck and no head, two arms and no hands? What is it?

What am I?

I am sure no one can have two things for dinner. what are they?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Rectify the following equality 101 - 102 = 1 by moving just one digit.