While metals can be maliable, it is more often a non-metal. Think dirt vs. a lead pipe.
No as a diamond is significantly harder then any knife material thus trying to do so would likely result in the knife edge being ruined. Although softer then diamond, this is the same reason granite or stone cutting boards shouldn't be used.
You would use CM or INCHES to measure a knife
Possibly, but most likely you would just get a shock or the circuit breaker would trip before it killed you. A normally healthy person would have to be connected to it for a while before it was fatal.
Any of the alkali metals (in group one of the periodic table)
Most likely, this discoloration is due to a reaction between your knife and the potato. Some metals turn potatoes a weird color. I would try getting a new knife, or you could try rinsing the potato really well under water for a few seconds right after you cut them. oxidation is the additional reason
Nonmetal.
elements that is soft and easy to cut cleanly with a knife likely to be metal or a nonmetal
metal
yes it can with a sharp knife
No as a diamond is significantly harder then any knife material thus trying to do so would likely result in the knife edge being ruined. Although softer then diamond, this is the same reason granite or stone cutting boards shouldn't be used.
Homogeneous
A person would want a sharp knife because a dull knife would render useless in all aspects of needing the knife in the first place. Unless the knife was being used as a screwdriver or something.
knife
A sharp knife cuts much better than a blunt knife. A sharp knife is less likely skid off and cause an accidental wound.
Most likely solingen
The likely word is "knife" (a cutting tool or blade).
On slippery, slick roads.