3 is a dandelion too I think. If you remember that dente de lion, where the name come from, means tooth of lion, from the shape along the edges of the leaves, that will help you recognise them in future.
6 is a dandelion too and 8
10 is ground ivy I think. Really pretty little plant but will grow in every nook and cranny and takes over if you let it. Can apparently undermine buildings.