I wonder where do mosquitos go during day?

Answer 1

They rest on the shady damp leaves of tall grass and bushes.

Answer 2

Mosquitoes land on darker surfaces and wait or rest until night time. I caught many mosquitoes by looking closely at desk walls, wallpapers, drapes.

They also hide behind beds, behind headboards, bookcases...

Answer 3

Dunno. but in my house, ladybugs and houseflies can be found hanging upside down on the ceiling.