Which small Basque town was immortalized in a 1937 Picasso painting?

Which sly laugh, made plural, is a candy bar? What word names a small, informal restaurant or a person eating there? What is a small amount of liquid flowing slowly called? What word names a small amount or an English dessert of sponge cake, custard and cream? Which small bird comes in house, cactus and rock types? What word names a small bit of snow, soap or cereal? What word for a bell tower is proverbially home to bats? What small cap is worn over the fingertip for protection while sewing?