April is National Poetry Month so I submit some verse for your approval....
Basically, the limerick is a five-line poem consisting of a triplet split by a couplet. That is, lines 1, 2, and 5 are a bit longer and rhyme, while the shorter lines of 3 and 4 rhyme. After studying many effective limericks, there is not a precise syllable count per line, but the norm is about 8-10 syllables in the longer lines and around 6 syllables in the shorter lines.
The grandsons are such a delight
To me they do everything right
The boys they do rock
The playroom’s a shock
But they’re angels, asleep late at night.