The Friday Brain-teaser from xrefer: Birthdays. Are you good at guessing people's ages? Try to guess the years when these famous people were born. Answers here:

1. Jennifer Aniston, American actress who stars as Rachel in "Friends". Was she born in 1959, 1969 or 1979?
2. Elton John, English singer and composer. Was he born in 1937, 1947 or 1957?
3. Quentin Tarantino, US film director. Was he born in 1953, 1958 or 1963?
4. William Shakespeare, English dramatist. Was he born in 1564, 1664 or 1764?
5. Sir Anthony Hopkins, Welsh actor who starred in the films "The Silence of the Lambs" and "Shadowlands". Was he born in 1937, 1947 or 1957?
6. Tina Turner, American singer and film actor. Was she born in 1940, 1945 or 1950?
7. Pablo Picassso, Spanish artist. Was he born in 1861, 1871 or 1881?
8. Sylvia Plath, American poet and novelist. Was she born in 1922, 1932 or 1942?
9. Rembrandt, Dutch painter. Was he born in 1406, 1506 or 1606?
10. Albert Einstein, German physicist. Was he born in 1879, 1889 or 1899?