logos

[ceilog]

3 left and they're sending me mad! i will have to describe them and they all appear in black and white on the quiz sheet so no colours to help.
1. looks like the letter T split in half inside a circle inside a square
2. looks like a rounded leaf which has had thin slices cut out of it
3. a circle made of dots which get smaller as they go from left to right .
any help much appreciated!