Why are all black people so quick ?

What is the coolest letter in the alphabet?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Find the smallest sentence with all the English alphabet.

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?