Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

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

Find the 8 in the below-given Image.

Do you know who was buried in John's tomb?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

You can see three almost identical images below. Can you spot the odd one out from them?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Consider this: Arnold Schwarzenegger has a big one. Michael J. Fox has a small one. Prince doesn’t have one. The Pope has one but never uses it. Bill Clinton has one and uses it all the time. What is it?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?