Find Social Media Accounts with Math Problems and Puzzles

I am interested in Social Media accounts that post/tweet a math problem or puzzle, and other people with an account reply with their solution. So you have:

1. Social Media: Make a list to search and include it.
2. Account: Search for math/mathematics problems/puzzles.
Maximum (no more than) 5 per Social Media.
3. Post/Tweet: Math Problem/Puzzle - look through the account for math problems/puzzles.
4. Reply: Solution (or maybe just a comment/question) – look through the replies/solutions.

That's one jpeg per account, so a maximum of 5 jpegs per social media.

It’s okay if the same account name is included on more than one Social Media. However, please include the ones you haven’t seen before first. That is, avoid duplicates is there are other names available.

Spreadsheet:
1. Name of Social Media
2. Link to each Post/Tweet with at least 1 reply.
3. JPEG snip of the Post/Tweet with 1 or 2 replies. Don’t include advertisements. (see examples)

The JPEG can be in the spreadsheet or in a directory and zip it. Either way is ok.

How many accounts (jpegs) per 5 dollars? I will pay the FL fee (initial milestone and released immediately.)
Please start today and have the rest of the day after you start, and tomorrow, available.

Thanks!