What does below Rebus say?

XLR8

John was piloting a plane behind a car but was never able to overtake it. Why?

Why are all black people so quick ?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

What is the largest number you can write with just 3 digits?

Which alphabet letter is a question?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?