Our product and our sum always give the same answer. Who are we?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Find the missing number in the image below.

I am an odd number. Take away a letter and I become even. What number am I?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

I have thought of a number that is made up by using all the ten digits just once. Here are a few clues for you to guess my number:

First digits is divisible by 1.
First two digits are divisible by 2.
First three digits are divisible by 3.
First four digits are divisible by 4.
First five digits are divisible by 5.
First six digits are divisible by 6.
First seven digits are divisible by 7.
First eight digits are divisible by 8.
First nine digits are divisible by 9.
The number is divisible by 10.

Can you find out the number ?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

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?