Yes
The only way to do that would be to install a mod to make it eternal day.
If you go near them they blow up. You can kill them with a sword. They spawn only at night or in caves; Somewhere dark
The only way to spawn herobrine in minecraft is to use mods as you cannot spawn him in vanilla minecraft.
No mobs will spawn on peaceful, you may hear noises but they will be effects even on peaceful. the only entities that spawn in peaceful (not including the nether or the end) are players and animals unless, in the end or nether.
The only mob that can spawn in water is currently a squid.
You can't, they are only spawned naturally. You can, however, use a spawn egg in creative mode to spawn them.
Only is you have Mo' Creatures and (MCEdit?) installed.
Minecraft seeds only control the landscape. The creatures spawn randomly.
If you mean by mob egg-type things, you can't. Only darkness can cause mobs to spawn.
slime? they are only in selected chunks and only spawn deep under ground.
You won't, you will only spawn on the main level.
Creepers can spawn during the day in Minecraft, but only under specific conditions. They require a light level of 7 or lower to appear, which can happen in darker areas like caves or under trees. Additionally, they will not spawn in well-lit areas or directly in sunlight. Therefore, while daytime generally limits their spawning, it is still possible in shaded or dark locations.