when did the earth's human population reach six billion???

Answer: October 12, 1999

Question: when does season 2 of cobra kai air?

Answer: 2019

Answer this question: where is tremors a cold day in hell filmed??

the Cape Town area

Q: what lauryn hill song is in drake's new song?A: Ex-Factor

Input: when were cell phones first introduced to the public?

Output: 13 October 1983

Please answer this: who nominates judges to the us district courts?
President