If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Find the missing letter in the last circle logically in the given below picture.

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

What country can make you shiver?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Which digit occurred maximum times between the number 1 and 1000?