If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Next Number in the Series,

5, 16, 49, 104, ?

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

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

what does the below math rebus puzzle mean?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

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