Tour of Harvard Yard.
The tour guide was giving a theatrical performance to his rapt audience.
"There are three lies in this sentence... 'This statue is of John Harvard, who founded Harvard in 1638.' What are the three lies?
"First, John Harvard did not found Harvard! Second, this statue is not OF John Harvard, and third, it was 16..." He looked around expectantly.
Walking by, I piped up, "1636!"
Which any good Boston Latin School student knows since it's one year after BLS was founded. =)