What English word has three consecutive double letters?

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

Can you find the number?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Why is 6 afraid of 7?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Can you name four days which start with the letter 'T'?

I have teeth but i don't bite. Who Am I ?

Spot 5 differences in two Christmas tree below:

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?