Riddle: Two hours ago it was as long after one o'clock in the afternoon as
it was before one o'clock in the morning. What time is it now?
Answer: It would be 9:00 pm. There are 12 hours between 1:00 pm and 1:00
am and half of that is six hours. Half-way between would be 7
o'clock. Two hours later it would be 9:00 o'clock.