Stack Master

How does protection from red stop [[Lightning Bolt]]? If I have [[Academy Loremaster]] on the battlefield, when do I decide whether or not to draw the additional card? Do I get to see what I drew for my normal turn draw first? If I control [[Leyline of Abundance]] and tap [[Seton, Krosan Protector]] to activate its ability, do I get an additional green mana? If I use [[Tishana's Tidebinder]] to counter the reflexive trigger of [[Agatha's Soul Cauldron]] or [[Zoraline, Cosmos Hierophant]], does the source permanent lose its abilities? If I have [[Laboratory Maniac]], [[Future Sight]], and [[Selvala, Explorer Returned]] with only one card in my library, can I win the game by attempting to cast that card even if I cannot afford its mana cost?