Forum:Flip and special summon questions

I have a few questions and hope you can help me: 1.) When I tribute a flip-effect monster, will its effect activate? (eg Man-Eater Bug) 2.) When I tribute a monster with a flip-summon effect, will this effect activate? (eg Guardian Sphinx) 3.) If I summon "Guardian Sphinx" in my Main Phase and all the monsters of the opponent are given back to his hand, can I attack in the “Battle Phase” and then flip it back in my “Main Phase 2”? 4.) Also if I use "Call of the Haunted" to special summon "Guardian Sphinx" and I use the effect to flip this card into face-down Defense Position, what will happen? Is the "Call of the Haunted" destroyed? And if it is, is the monster also destroyed? I hope you someone can help me. Thanks in advance.