A light or humorous poem of five lines called?

Correct answer: Limerick.

• Limerick
- A popular form of short, funny verse that is often nonsensical and rude.
- A humorous rhyming composition of five lines.
- Example of Limerick:
"A wonderful bird is the pelican,
His bill holds more than his belican.
He can take it in his beak,
Enough food for a week,
But I'm damned if I see how the helican."
--- By poet Ogden Nash:

• Other options:
ক) Quartet
- A musical composition for four instruments or voices
- চারজন গায়কের দ্বারা গীত গান।

খ) Sextet
- A musical composition for six instruments or voices
- ছয়টি কণ্ঠ; যন্ত্র বা বাদকের সমন্বয়ে ছয়টি কণ্ঠ বা যন্ত্রের জন্য রচিত সংগীত; ষড়ঙ্গক।

ঘ) Haiku
- The haiku is a Japanese poetic form that consists of three lines, with five syllables in the first line, seven in the second, and five in the third.
- প্রাকৃতিক দৃশ্যকল্প নিয়ে লেখা একটি তিন লাইনের সংক্ষিপ্ত জাপানি কবিতা।

Source:
1. Britannica.
2. An ABC of English Literature, Dr. M. Mofizar Rahman.