Yeah. You get your rank based on an average of your boards and nata score. So try and get maximum in both areas to get a good rank.

no that's incorrect, you just have to qualify 12th / be 12th pass to give the exam.

for more info check this out

http://www.uceed.iitb.ac.in/eligibility.html

The minimum marks that one needs to score in their 12th board is minimum 75%.

NO...UCEED does not take CBSE marks into consideration

Pyramids of Egypt

The cut offs for SPA Delhi will be near 50-60% but if you have a good percentage (above 85), you will be considered as a strong applicant.

There is only mathematics,architecture aptitude and drawing