Which acid is the main gastric acid present in the human stomach?

More Questions:

What team bought Babe Ruth from the Boston Red Sox?

Which country hosted the 1900 Olympic Games?

What nationality is tennis player Martina Hingis?

What pharmaceutical company manufactures the drug Viagra?

What "Lady of the Lamp" was named for the Italian city where she was born?

In what lunar phase is the moon when it is three-quarters full?

What rockstar's ashes were scattered both in the Ganges River and San Francisco in 1996?

On what soap opera did John Stamos play character Blackie Parrish?

Who stars as Rick Santoro in the 1998 movie "Snake Eyes"?

Who was the first winner of the TV show "America's Next Top Model"?

What does the Russian space station's name "Mir" mean in English?

What was the capital of East Germany?

Who wrote the play "Heartbreak House: A Fantasia in the Russian Manner on English Themes"?

Who was Sherlock Holmes’s assistant?

Which singer wrote the autobiography "Take It Like a Man"?