The easiest way is to hire someone to fix it but gluing would probably work but not very well.
Your laptop keys turn off after a while if the sticky keys are turned on.
Is the keys on a laptop or desktop? Is on a desktop they just pop off real easy and you can replace them with new keys. If it is on a laptop they are a little harder and require some work.
The method of taking keys off a laptop keyboard is different depending on the model. Consult your owner's manual for details.
Broken
Yes most do
Well since you asked this question you must of used the keys on your laptop/computer! So you must of had the sense to count them...Total Keys = 84, but it depends on what computer you have....
A phone is usually much smaller than a laptop, so the keys have to be smaller and fewer :-) The keys also have to be harder, so they are not so easily pressed when you have the phone in the pocket.
eighty-seven
The functions keys on a laptop are sort of a shortcut for the user. They have function keys for volume, refresh and search to name a few. This is a way to complete your task faster.
take that fan out and then clean it. ( then put it back in)
Put it on back up or get a new hard drive
remove it, put it back in, charge, and take it out again.