Soaking the stamp in hot water will disolve the gum (glue) on the stamp. If the stamp has not been used for postage, then you are able to re-glue and re-use it.
Depends what type of glue.
Sorry, but there is no glue in cakes.
it could be possible . it's just paper.. so I don't see why you couldn't
No you can not because they dont have special glue to do it
you dont
You dont
No. - Apparently, most stamp glue was made of casein, a milk product. Now almost all stamps issued in USA, UK and Canada are self-adhesive ( you don't have to lick or moisten them.)
You get weak, wimpy Elmer's glue.
You get warm, weak glue.
Nothing happens
You Die