What is the word or phrase?

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?

How many Watermelons are there in the below picture?

Find out the number of circles in the given picture having Illusion

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

I have an eye but still cannot see.

Who am I?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

O_er_t_o_

Complete the missing letters of the given word.