TSA carry on questions

Their web site is less than informative.

I had heard, and see at other sources that a small knife (less than 2.36 inches) is ok for carry on. The TSA site says all are prohibited. I would just like to take a small multi tool with me. The blade is 1 and 1/2 inches long.

Also. Liguids. 100ml is ok. It your liquids and gels and tooth paste needs to fit in a quart zip lock. Fine. But it says per volume. Do they mean per container/bottle? So I could take 2 or 3 100ml bottles and some mini toothpaste as long as they fit in the zip lock?

The TSA website is correct regarding knives. You’re probably confused because of this:

As to liquids, the rules are pretty straight forward, and as you think, each bottle must meet the 100 ml rule, and you must put everything in the 1 qt bag, but since there is no rule saying you can’t have 2 bottles of the same thing, then you may have 2 bottles of the same thing.