How to move forward?

Sorry, I disagree with all the guys on here, she's just having a bit of fun, being cocky etc. nothing crazy lmfao. She's not "testing" you or somehow challenging your frame, just go with the flow and keep bantering. IMO this is the type of girl that's the most fun to text/meetup etc. - they tend to like to have fun and invest quite a bit.

I would respond with something like "I don't want to intimidate you or anything but I won my 3rd-grade spelling be so.." alternatively, you could try "So you're not just a pretty face?" - a bit more ballsy this one but I've used it a couple times and it elicits some pretty funny responses (in a good way).

Hope this helps bro.

"If you say so. "

"I thought talking to you would cause me brain damage so I left it behind"

Honestly she is not testing nor teasing you, she's most probably just a jackass who thinks she's being funny.

I wouldn't even engage her back but you can still try

She’s trolling you, you can troll back, or shift to a new thread.
“Have you always been this miserable”