In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Who can jump higher than a Mountain?

why number 8549176320 is one of a kind?

What has lots of eyes, but can’t see?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

Find out the missing number in the picture attached:

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.