In soccer, how many yellow cards result in a red card?

More Questions:

Defenestration is the act of being thrown out of what?

What sport in the Olympics includes tucks, twists and pikes?

Which Biblical figure by Michelangelo has been called "the most recognizable statue in the History of sculpture"?

According to Langston Hughes, what might "dry up, like a raisin in the sun"?

Who are the two primary characters in the "Millennium" novel series?

In Greek mythology, who did Zeus place in the heavens as the constellation Ursa Major?

What two US states border Mexico's largest state, Chihuahua?

What does the "c" in the equation e=mc^2 stand for?

What are the four chambers of the heart?

Which planet spins on a nearly horizontal axis?

Who appears alongside Jim Carrey in the 1994 movie "Dumb and Dumber"?

What was the great discovery made in 1922 by Howard Carter and Lord Caernarvon?

What are the six types of quarks more generally referred to as?

Electrum is a natural alloy of silver and what other metal?

Who performed the 1977 song "Let's All Chant"?