Find the number x that satisfies two interesting properties.
A mad robot sets off on a journey mindlessly following a set of instructions. Where will it explode?
Sharpen that wooden stake!
Which gives a tighter fit: a square peg in a round hole or a round peg in a square hole?
How many prisoners escape after visits from wardens?
The n-th birthday of a very famous mathematician coincides with a year that corresponds to the (n+1)st prime number. Who is this mathematician?