Question:

What comes next in this sequence?

J, F, M, A, M, J, J, A, S, O, __

Answer:

N! The letters are the first letters of the months!

Citations:

https://www.upsidedowntext.com/

https://www.brainzilla.com/brain-teasers/riddles/oRVNN9VK/i-keep-things-green-and-keep-kids-happy-during-summer-time-what-am-i/

https://www.shutterstock.com/search/november