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?

What goes up but never comes down?

Which tank will fill first?

What word begins and ends with an E, but has only one letter?

What is the word or phrase?

A sundial has the fewest moving parts of any timepiece. Which has the most?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

What has 13 hearts but no other organs?

Can you find out the total number of triangles in the given figure?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1