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.

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

What is the last thing you take off before bed?

What can you see in the middle of March and April that you can never see in any other month?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

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

Count the number of squares in the picture below.