Animal Trivia: Gorillas do not know how to ----------?

Questions

where did georgo and laszlo biro invented the ball point pen?

the biro brothers invented the ballpoint pen in 1936, 1938 or 1939?

in which drink will a raisin in a glass keep floating to the top and sinking to the bottom?

what fruit will keep floating to the top and sinking to the bottom of a glass of champagne?

in 1965, lyndon b johnson enacted a law requiring cigarette manufacturers to put what on their packages?