Daymarkers are red triangles with green squares.
You are boating near shore at twilight. You see a square-shaped daymark. You cannot make out the marker's color. What color is it?
red
red
Green.
Square daymarks are always green and indicates the left side of the channel as the boat moves upstream. A triangular daymark is always red and marks the right side of the bank.
Daymarkers are red triangles with green squares.
You are boating near shore at twilight. You see a square-shaped daymark. You cannot make out the marker's color. What color is it?
You are boating near shore at twilight. You see a square-shaped daymark. You cannot make out the marker's color. What color is it?
Daymarkers are red triangles with green squares.
You are boating near shore at twilight. You see a square-shaped daymark. You cannot make out the marker's color. What color is it?
None, because there can be no such thing as a triangular square. If it is triangular it cannot be a square, if it is a square it cannot be triangular.
Gray or yellow