One true number each. Guess, and see how close you got.
Question 1Ocean
Question 2Life
Question 3People
Question 4Surfing
Each question has one true number. Type your best guess and press Enter: it's in, and the next one's up. The closer you get, the bigger the trick, and five judges score your wave out of 10.
Every answer comes from a published source, quoted and linked in the results. Photos from Wikimedia Commons. No clock: take your time. One scored game per device per day; replays are practice.