Soft-serve sleuthing

Mastermind Treasure Hunt: Ice Cream Edition

As if spending your afternoon living out your childhood dream of going on a treasure hunt isn’t enough, this particular one is ice-cream themed. Gather up the best puzzle-solvers you know as your team scrambles around town, eats tons of that frozen-dairy goodness and tries to solve puzzles without getting a brain freeze. $25, 9:30 a.m. on Saturday, June 11,at 11th and L streets;