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?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

What's the best place to go shopping in the ocean?

What has 88 keys?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?