There seem to be two separate questions here.

One is: Can intelligence, wittiness, sharp mindedness etc be manifested?. The other is: Are intelligence, wittiness, sharp mindedness innate or acquired?

I'll answer the manifestational aspect...

You can manifest anything you like - it doesn't matter what the subject is.

If you can think it, the universe can manifest it.

This is because a manifestation is simply a thought that you have flowed so much energy towards that it has condensed into physical reality. It's a similar idea to when invisible water vapor in the air condenses into something visible like clouds or fog, or even rain.

You can therefore manifest any thought you can think. If you can imagine it, the universe has the ability to manifest it.

And it's entirely up to you which thoughts you wish to condense...your habits of focusing determine your physical reality

Also see: can I use the LOA to attract casual dates into my life??

Stingray has covered the manifestational aspect so I'll attempt to answer the other one - Are they innate or acquired?

I think each of us are born with certain characteristics or personality traits that we acquire due to the overall vibrational setpoint of our gene pool.

That being said,I think we all have the ability to change or develop these characteristics to our own liking by spending time on introspection and self development. This is the best gift we can give both to ourselves and humanity as a whole.