Is someone really your best friend if you can't trust them? I think not!

NO!

Not only no, but [b]hell[/b] no.

Obviously not.

Perhaps, though you may not trust them fully. My friend of 38 years has lied to me numerous times, so I just limit the amount of information I share with him. I used to call him my best friend but after his last lie we stopped speaking for over a year. I certainly wouldn't count on him to rescue me if I was in trouble.

Depends on the quality of your other friends. "Best" is subjective.

Nope. Trust is important. Hard to earn, easy to lose. My last best friend was generous, but too much of a gossip. Bringing me everyone's dramas caused me a lot of stress I didn't need.

No way!

No

No

I'd say not, too. I think trust is the least one would expect of any friend, never mind one's best friend.