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

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

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

What is the next number in this matchsticks series riddle?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

Can you count the number of triangles in the given picture?

Can you count the number of squares in the figure below?

How can you tell a raw egg from a hard-boiled egg?