Question:

What can be seen in the middle of March and April that cannot be seen at the beginning or end of either month?

Answer:

Cites

https://www.riddlesandanswers.com/tag/april-riddles/

https://www.shutterstock.com/image-vector/hello-april-month-vector-hand-260nw-1689410863.jpg

https://www.upsidedowntext.com/