The mathematician-turned-musician wrote songs that, decades later, still make readers laugh.

Before Tom Lehrer opened his mouth, he seemed the image of decency. Sitting at the piano in a tux as sharp as his jawline, looking a little nerdy with his slicked-back hair, large-framed glasses and ...

So farewell, the satirist Tom Lehrer who has died at a ripe old 97. His acidic little ditties shocked and delighted us.