What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

I shave every day, but my beard stays the same. What am I?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

What can you catch but never throw?

What demands an answer, but asks no questions

What do you get if you add 2 to 100 four times?

Rearrange the letters in "new door" to make one word.

10+10 and 11+11 can give you the same answer.

Explain how?