TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Gerbils get reproductive when they reach sexual maturity at the age of _ months.

SOLUTION: three

PROBLEM: Rheas are brownish instead of black like the ostrich and have _ toes instead of two.

SOLUTION: three

PROBLEM: Irish myth says _ dogs guard the gates of death.

SOLUTION:
two