What is the purpose for the drain system Oskar imagines in googleplex?

What does refute meen? What is 26 32 at its simplest form? What is forty five percent in its reduced form? How many tons in 4000000 litter? What is X 2x-1 equals -3? What is the synonym to the word facile? What is the sum of the measure of the angles in a figure having seven sides? How do use a mixed number? What is 13 over 10 as a fraction and a decimal? What is accepting or rejecting your hypothesis? What do the e m and c stand for in e equals mc2? What is 3000 times 2000000000? What did 78 rpm record cost in 1946? How many centimeters are in 6ft? What numbers besides numbers 42? What is it called when two perpendicular number lines or axes used for graphing ordered pairs of numbers? How did women look in the old days? What are the base angles of an isosceles trapezoid? What percentage is 16 out of 19? What is 412000000 in words?