Las Vegas Roulette is a free roulette table with standard rules: place your chips on numbers, colours, columns or the outside bets, spin, and see where the ball lands. It uses virtual chips, so there's nothing to deposit and nothing to win.
That makes it a reasonable way to learn the layout — which bets pay what, how the outside bets work, and why the wheel's house edge is what it is — without any of it costing anything.
No — it uses virtual chips with no cash value. There's nothing to deposit and nothing to cash out.
35 to 1 in standard roulette. Even-money outside bets like red/black win far more often but pay much less — the trade that defines the game.
No. Each spin is independent of the last, so no sequence of bets changes the underlying odds.