What question can you never answer yes to?

What 5-letter word typed in all capital letters can be read the same upside down?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Replace the question mark with the correct number.

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?

During which month do people sleep the least?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?