What has 13 hearts but no other organs?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

A monk has a very specific ritual for climbing up the steps to the temple. First, he climbs up to the middle step and meditates for 1 minute. Then he climbs up 8 steps and faces east until he hears a bird singing. Then he walks down 12 steps and picks up a pebble. He takes one step up and tosses the pebble over his left shoulder. Now, he walks up the remaining steps three at a time which only takes him 9 paces. How many steps are there?

Solve the following series:
AZ, GT, MN, __, YB

What is wrong in the below Picture?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Solve the rebus riddle in the picture below.

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?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?