Why are all black people so quick ?

What is the word or phrase?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

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.

What is more useful when it is broken?

Bay of Bengal is in which state?

Why do we preferably have round manhole covers and not square ones?

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?