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

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

Can you find the missing piece of the Porsche?

Who always enjoys poor health?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?