Challenge 8: DECODE THE MESSAGE IN JPEG

A link to a JPEG in question is written on the challenge paper (corrected to bit.ly/2f4aBsU ).

Challenge 9: DECODE THE TEXT

A piece of paper with gibberish printed on it. No instructions provided.

Challenge 10: TRAFFIC ANALYSIS

A link to a .pcap file seems to be all you need.

Challenge 21: THE LAST WISH OF GREAT K

You have an Ouija board with a dish on it, a candle attached to the board and a stack of playing cards. There's nothing else that could tell you what the heck you're supposed to do with this.

Challenge 31:

okay what the hell I don't have those characters on my keyboard

At least this one includes a link to the text so you don't actually have to type it on the keyboard as seemed to be the way with Challenge 9.

Challenge 32: HACK THE ENIGMA MACHINE

A PS/2 keyboard with erased letters, a 16x2 display and a healthy dose of hot glue. Can you type out the text so it looks exactly the same? Not as simple as it seems - the letters that you're supposedly typing never seem to match what appears on the screen.