LIT: Did someone say free Scotch tasting? Enjoy a free tasting of Balvenie scotch with some light snacks, along with raffle prizes, as author Howard Miller celebrates the release of his book You’re Full of Shift, an inspiring collection of stories that show how difficult situations can be shifted to positive opportunities. Musician Shelley Kutliek will also sing from her debut release, Resolution, which combines the genres of pop, jazz, blues and bossa nova.

5:30 p.m. // Simayof Jewelers (295 Geary St) // free

SCIENCE: Celebrate Pi Approximation Day and Ask a Scientist's 6th Anniversary with a Puzzle Party! Puzzle Master Wes Carroll will dole out math and logic puzzles that will make you shout both "Arghh!" and "A-Ha!" Participants can compete solo or on a team of up to 6 people. Calculators are allowed, but cell phones and Internet are not. Bring pencils and scratch paper.

6:30 p.m. // Axis Cafe (1201 Eighth St) // free