Truth value and All Statements.

Please indicate whether each of the following sentences is true or false. If it is neither, then describe what it is instead and explain how something can be neither true or false.

I do not guarantee I have the correct answers for all of them.

"This sentence is either true or false."
"This statement is false."
"This sentence is a lie."
"This sentence is not true."
"This sentence is not true if it's not nonsense."
"This sentence is also nonsense."
"This statement is as true as the one before it."
"This statement is true if it's not nonsense."
"If a sentence must be true or false, then this is neither."
"This phrase is not true, but this sentence is."
"This phrase is true, but this sentence is not."
"Sometimes this sentence is nonsensical."
"Sometimes this sentence is true."
"This statement is never what it appears to be."
"This statement is always untrue."
"This statement might be false."
"This statement might be true."
"It is not clear whether this sentence is true or false."

Finally, can you come up with a sentence that would stump someone who has correctly categorized all of the above sentences?