By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

What has 88 keys?

It belongs to you, but other people use it more than you do. What is it?

Find the last number in the series below:

voN luJ yaM raM ---

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Can you count the number of quadrilaterals in the picture below?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?

Why is the Hole below a Lock?