As the speed of a body approaches the speed of light, its mass approaches what?

More Questions:

A "scratch test" is usually performed when a doctor suspects the patient has what?

What is traditionally the main fruit ingredient in a rickey?

How is Edson Arantes do Nascimento better known?

How old was boxer John L. Sullivan when he died in 1918?

Who is credited with writing the first detective story, "The Murders in the Rue Morgue"?

Who wrote the book "The Electric Kool-Aid Acid Test"?

Which of the New England states is the largest in size?

In what country would you find the mouths of the Dnieper river?

In what country would you find the active volcano "Nevado del Ruiz"?

What is the nickname for Reading, Pennsylvania?

What does a decibel measure?

How many feet are there in a nautical mile?

What was the name of Jasmine's tiger in Disney's "Aladdin"?

Which treaty organisation was set up as a counterpart to NATO?

Who invented writing?