PNG ICO ICNS MORE
Signs & symbols
Smooth
Super Mono Basic
yellow, question, Balloon
Black
48x48
Desktop apps
Farm-fresh
question
32x32
PNG ICO MORE
UI
Super Mono Stickers
sticker, frame, question
64x64
Shopping & e-commerce
Super Mono Reflection
Blue, frame, question
question, green
green, button, question
Balloon, green, question
green, frame, question
Balloon, red, question
frame, question, red
red, question
yellow, question
frame, question, yellow
yellow, question, button
Basic, Blue, Balloon
Business & finance
Free pretty office Icons part 2
Faq, Answer, question
256x256
Woothemes Ultimate Icon Set
exclamation, stop, Hand
128x128
KDE Crystal Diamond
question, messagebox
22x22
