Two Guards, One Question★☆☆about 4 min
The Clock in the Mirror★☆☆about 3 min
The Missing Dollar★☆☆about 4 min
The Dog That Did Not Bark★☆☆about 4 min
Glass Scattered Outside★☆☆about 3 min
Thirteen People, Same Birth Month★☆☆about 3 min
The Die That Cannot Exist★☆☆about 3 min
Three Things Across the River★☆☆about 5 min
Two Taps and a Tank★☆☆about 4 min
Twenty Percent Off, Then Ten Percent Up★☆☆about 3 min
Across the Round Table★☆☆about 3 min
The Magic Square Lock★☆☆about 4 min
The Missing Newspapers★☆☆about 3 min
Socks in the Dark★☆☆about 3 min
The Four-Lamp Code★☆☆about 4 min
The Shifted Note★☆☆about 4 min
A Sixty-Four Player Tournament★☆☆about 3 min
The Diagonal of a 3 by 4 Room★☆☆about 4 min