Statues (at least in my experimentation of building a fish farm) have a hard delay of about half a second before they spawn another monster, in addition to a limit on the number of alive monsters spawned at once (which is 3, if I remember correctly).
The optimal spawn setup seems to honestly just use a timer (one second, of course) hooked up to part of the statue, then a series of pressure plates near an area enemies are going to walk on. Reason being, their motion will try to trigger the spawn again instantly. This works especially well if you have it hooked up to a dart trap, as enemies will often jump at walls and retrigger the buttons repeatedly as long as they're trying to get at you, sending darts out all the time.
In my experimentation having more than two input lines in this setup doesn't change a whole lot in terms of rate of action.
One thing to remember is that wires in Terraria are not like Minecraft -- they do not have "on" and "off" states. They simply "pulse". So while a lever may look like it changes states, every time you click on it, it pulses a signal again.
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I will say, though, that I haven't experimented with multiple one-second timers. I don't think it'd do much other than provide a more reliable rate (if you can even get them desynced in the first place)...
That is a new type of dungeon in the underground jungle. You fight the Golem there at the Lihzahrd Altar.
You can break the blocks once you kill the Golem.
You can't kill the Golem till hardmode is activated.
Best Answer
That's an Orange Bloodroot, a material used to craft Orange Dye. If your inventory wasn't full, you would be able to pick it up.