In soccer, how many yellow cards lead to a player's disqualification?

More Questions:

Which MLB player lead the American league in home runs in 2010 and 2011

What year did Andre and Edouard Michelin first publish the "Michelin Guide"?

What number was retired by the Chicago Bulls to honor Michael Jordan?

What items of equipment are made by a fletcher?

On which continent would you find gauchos?

What is the meaning of the name of the constellation Ophiuchus?

What American opera singer was nicknamed "Bubbles"?

Who voices the character of scientist and inventor Professor John I.Q. Nerdelbaum Frink Jr. on The Simpsons?

Who voiced the character Gru from the animated movie "Despicable Me"?

Taking advantage of a fad at the time, what song became a #1 hit for Ray Stevens in 1974?

What city hosted the 1992 Summer Olympic Games?

In what country is the grave of the famous German philosopher Immanuel Kant located?

In what present-day country was the first space launch facility located?

What toy was Arnold Schwarzenegger after in the movie "Jingle All the Way"?

In which country would you find the Tokaj wine region?