Which Travels Faster? Solve below famous picture riddle:

The dirtier I get, the whiter I look. Who am I?

What demands an answer, but asks no questions

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Make a sentence consisting of three words that have the whole alphabet.

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?