why number 8549176320 is one of a kind?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

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

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Can you write down eight eights so that they add up to one thousand?

Look at the picture and find out which square is not linked with any of the other squares.

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

What has hands, but can’t clap?

There are 3 apples in the basket and you take away 2. How many apples do you have now?