when did phone numbers change to 7 digits???

Answer: from the 1950s onward
Question: who is the flash season 4 main villain?

Answer: DeVoe
Answer this question: when did air conditioning became standard in cars??

late twentieth century
Q: where did the emperor's new groove take place?A: the Inca Empire
Input: who sang i got a brand new roller skates?

Output: Melanie
input: What is the answer to this question? who was the oldest president to be elected?

output:
Donald Trump