Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

If an electric train is travelling south, then which way is the smoke going?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

In a classic wine shop, the list of three most popular wines are:
- The cost of 1 French wine bottle: 500$
- The cost of 1 German wine bottle: 100$
- The cost of 20 Dutch wine bottles: 100$

John entered the wine shop and he needs to buy
- All three types of wine bottles.
- Needs to buy Dutch wine bottles in multiples of 20.
- Need to buy 100 wine bottles in total.

John has only 10000$. How many wine bottles of each type, John must buy?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10