B3R1A1I1N1T1E1A1S1E1R1
13 points
BRAINTEASER is validvalid
a puzzle [n BRAINTEASERS]
something (as a puzzle) that demands mental effort and acuity for its solution [n -S]
a puzzle [n BRAINTEASERS]
something (as a puzzle) that demands mental effort and acuity for its solution [n -S]