UPDATED :)

ENGLISH TRIVIA:

• The word set has more definitions than any other word in the
  English language.
• Underground is the only word in the English language that
  begins and ends with the letters “und.”
• The longest word in the English language, according to the
• Oxford English Dictionary,
  is pneumonoultramicroscopicsilicovolcanoconiosis.
  The only other word with the same amount of letters is pneumonoultramicroscopicsilicovolcanoconioses, its plural.
• The only 15 letter word that can be spelled without repeating a
  letter is uncopyrightable.
• The dot over the letter ‘i’ is called a tittle.

MATH  TRIVIA:

      

•    The longest prime number is 13,395 digits long.
•    Q: What number, a one followed by 100 zeros, was first used by nine-year-old Milton Sirotta in 1940?   A: Googol

SCIENCE TRIVIA:

• A cricket's ears are on its knees.
• What radioactive element is extracted from carnotite and pitchblende?
  A: Uranium.