Question on questions :)

Hi guys,

Newbie question but since we are here to help each other no question is stupid. So what is the difference between the challenges and the 1000 questions? Where to the questions from both come from? Also, why are there no verbal challenges?

Now I am not great at quant by any means. As a matter of fact it took me 4 months to go from a 22 or so to a 35. Now what would you guys recommend for me to do to get to a 40+ score? I've been studying the OG and can get most of the first 150 questions right (still need work on the later ones). I haven't done all of the OG questions yet but I was wondering where is the best place for me to study to get that 40+ score, the OG, challenges, both? Thanks guys!

P.S. I sense that my fundamentals are a bit week so I've been brushing up on that as well. How embarrasing for a 24 y/o to learn for the first time about special triangles