Riddles Random Riddle: 5-26-2014 May 26, 2014March 18, 2014 gags What is the meaning of this? (Estimate/Never)^(+Thinking) – 2 Show answer Never underestimate the power of positive thinking. “Never” is under “estimate”, and this is raised “to the power of positive thinking.” The “to” is removed by subtracting it at the end.