Forum:Bunch of questions

this is bunch of questions, so i need bunch of answers hehehe (=_=)

1) i have an active trap card "bad reaction to simochi" on my field, i activate "gift card" to give my opponent effect damage 3000 but my opponent activates a trap card "Energy-Absorbing Monolith", will his life points increase or decrease? dont forget i still have an active "bad reaction to simochi"

2)could i activate divine wrath or solemn judgment to prevent jinzo?

3)my opponent has 3 monsters on his field, he sacrifices 1 monster to summon a lvl 5 monster but i activate ojama trio, can i activate ojama trio to prevent him from summoning lvl 5 monster after i activate ojama trio to make his monster field zone full?

4)sending a 4 spell card crystal beasts from my field to my graveyard by the effect of crystal abundance is a cost itself?

5)if a deck has a limit of 40 cards, does a fusion deck has its limit also?

6)should i show the card that i chose to pick at my deck at my opponent after i activated the card gold sarcophagus?

7)can i activate "D.D. warrior lady"s effect if it is attacked while its set on the field? or even there is no damage calculation happened?

8) can i activate "Neo-Spacian Grand Mole"s effect while its attacked on my field if it is set? or can i activate its effect also if i declared grand mole to attack on a set monster on my opponents field?

9)when grand mole attacks a set card, will the card flip itself?

10)i activate crush card virus after my opponent draws a card, suddenly he activates a monster reborn to revive his summoned skull on his field from his graveyard, does summoned skull is affected by the virus?

thanks ^^v, need