Have you heard about the recent math puzzle featuring a cow thatâ€™s been causing quite a stir on Twitter? With its cozy cottage vibe, this brain teaser has got people debating the correct solution. So, letâ€™s dive in and see if we can solve it together!

**The Puzzle: A Cow and Some Numbers**

Hereâ€™s how the puzzle goes:

- You buy a cow for $800.
- You sell the cow for $1000, making a profit of $200.
- You buy the cow again for $1100, but since you already made a profit of $200 from the first transaction, your effective cost for the second purchase is reduced to $900.
- Finally, you sell the cow again for $1300, making a profit of $400 ($1300 â€“ $900).