This is a japanese bamboo flute. It is called shakuhachi. Recorded in the summer with the windows open, you can hear lots of little insects in the background. Try some reverb and delay on this one !.
A snare drum with some delay added. Roughly around 200ms delay then goes down in whole number increments while decreasing in volume. A cool affect if it works with your tempo. Enjoy!.
A mosquito ringtone 11kHz. Nice to put on your phones or computers and piss people off with. They wont know where the hell its coming from. Very high pitch ringing sound, sounds just like that ringing you get in your ear sometimes. Nice for pranks.
A human doing a lion roar sound. Created by littlemonke. Uploaded by littlemonke. (i did this sound and edited it so it'll have no background sounds at all).