What will you call your mother's brother's brother-in-law?

Whats the next number in the below number sequence pattern.

Can you find out which number multiplied by itself will give the output as 12345678987654321?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

If a wheel has 54 spokes, how many spaces are there between the spokes?

A bomb exploded in a room full of married couples and no one died. How?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What does this simple rebus mean?