IBMC #3 Risk for a random challenge

Randomness and pointlessness assured! Laughter, surely not.

One, Two, the sky is blue
Three, Four, Lions roar
Five, Six, Donkey kicks
Seven, Eight, clean your plate
Nine, Ten, saw a sea pen
Eleven, Twelve, light the stove
Thirteen, Fourteen, where have you been
Fifteen over sweet sixteen
Seventeen, Eighteen, don’t make scene
Nineteen is the end of teen
Twenty and Twenty is a Forty.