Answer: 1987 pennies are worth more. (those aren’t dates – they’re amounts)

#meetings
If you have to run meetings, or if you just need to gather a few co-workers for an informal brainstorming session, this small thing, written on the white board at the front of the conference room, might improve the mood of the group and made them feel relaxed and comfortable.
Your attendees will almost always come to your meeting distracted – thinking about emails they have to answer, tasks they have to complete, calls they have to make, other meetings they have to prepare for.

If you want your group’s full attention, one idea is to start your meeting with a mental exercise that’s both enjoyable and calls on your attendees’ brainpower.

The more the riddle or brainteaser mentally taxes them, the more your attendees will need to focus on it.