A) Find the smallest polyomino that is not star-shaped.

B) Find the smallest polyomino whose kernel is a single point.

C) Find the smallest polyomino whose kernel is a line segment.

D) Find the smallest polyomino whose kernel is precisely half the area of the polyomino.

E) Prove or disprove: For every rational number, Q, where 0≤Q≤1 there is a polyomino whose kernel is Q times the area of the polyomino.

Note: smallest refers to the number of squares comprising the polyomino.