Do penguis have claws yes or no?

Penguins have webbed feet that terminate in several claw-like appendages. However, in the 'clawing' sense of claws, penguins don't use the ends of their webbed feet as claws for feeding purposes, but do use them to secure purchase on ice and on hilly areas where they breed.

So, 'yes' if by claws you mean 'look like claws'. (Scientists use the term claw to describe the terminus of the webbed foot of a penguin.)

So, 'no' if by claws you mean 'uses claws to catch food, like a cat or a raven'.