Only Last MCQ is answered wrong.
Right answer is:
10. c
Book Sahifah Sadiqah the very first book was written by Hazrat Abdullah Bin Aamir containing more than 60,000 ahadiths.
Refernce:
http://www.themodernreligion.com/mis...rejectors.html
chapter : Were Ahadith Written Down for the First Time in the Third Century of Hijra?