Celebration Gibs! [Gibs and Riddle inside... DUH!]

I surpassed 2000 games on Steam lately and I want to celebrate it just a little bit. But I don't want to make it too easy for you, so you have to pass a little puzzle. If it's too difficult for you (what I don't think), I'll add hints at a later time. [edit]won't happen, it seems to be too easy ^_^[/edit]

For those who want to know what awaits after the puzzle; it's one copy of The Witcher 3: Wild Hunt GOTY and one of Deus Ex: Mankind Divided, both require SG Level 6 to enter.

Puzzletime!

5 characters are needed. I think you know why.

First one is easy, just to warm up. Take the √9. (square root of nine)
It's Latin name is Ursus arctos. What's it's english name? Take the first letter as capital.
00111111 00100000 00111101 00100000 01110011 01101001 01101110 00101000 00111001 00110000 00101001 00100000 00101011 00100000 01100011 01101111 01110011 00101000 00111001 00110000 00101001 00100000 00101011 00100000 01111000 00100000 00101011 00100000 00110001 00111011 00001010 01110111 01101000 01100101 01110010 01100101 00100000 01111000 00100000 01101001 01110011 00100000 01110100 01101000 01100101 00100000 01110011 01101101 01100001 01101100 01101100 01100101 01110011 01110100 00100000 01100110 01101111 01101100 01101100 01101111 01110111 01101001 01101110 01100111 00100000 01101001 01101110 01110100 01100101 01100111 01100101 01110010 00100000 01101111 01100110 00100000 01000101 01110101 01101100 01100101 01110010 00100111 01110011 00100000 01101110 01110101 01101101 01100010 01100101 01110010 00101110
Who nailed his Ninety-five Theses to the door of a church? Take the third letter of his first name as lowercase.
Goddess of love, beauty and motherhood in the Ancient Egypt. The letter you're looking for appears twice in her name. Take it as lowercase.

HF & GL ;-)