Question mark made of puzzle pieces: A big question mark made by stacking various jigsaw puzzle pieces and then making them take that specific shape. The pieces are scrambled and on both sides against a white background. Image 4273168957 by Horia Varlan and licensed under the CC-BY 2.0 license on FLickr. Thank you , Horia!
Many but not all of the images on this blog are under a Creative Commons License. If and only if the image above is under a Creative Commons license, you can find details for the different licenses at the Creative Commons. The most common licenses are Attribution CC-BY 2.0; 2.5; 3.0; and 4.0; and Attribution Share Alike CC-BY-SA 2.0; 2.5; 3.0; and 4.0;