It depends on where you live. Hummingbirds are flower feeders and consequently tend to migrate when flowers will be in bloom. So feeders should be put out in spring when flowers start blooming and should be kept out until the first frost. Its also important to change the liquid in feeders every week since it will begin to ferment.
If too warm/hot the hummingbird will not feed.
Do not put beech in a hummingbird feeder and present this as food to the birds, it will kill them.
Most hummingbird food is simple some form of sugar and water. Unless you are diabetic you will likely be fine, though there could be a reaction if the hummingbird food has red food coloring and you are allergic to that.
Is that a hummingbird hovering? How does a helicopter achieve its' hovering ability? Lounge lizards are hovering about the food bar.
No, you should not drink hummingbird food. You should never drink anything not made for humans.
sure, it'll make for some nicely colored porch decoration later too
Food availability, (type of food available for the hummingbird)
Early Spring
yes you can
No. Commercial hummingbird nectar is fine. But it gets stale, so change it often.DO NOT EVER put honey in hummingbird nectar; that WILL kill them.
yes
Nectar and sugar water.