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

Can you find the number?

Why is 6 afraid of 7?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

What seven-letter word has hundreds of letters in it?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Spot what is wrong here in below Picture?

Which letter of the alphabet has the most water?