Yes, absolutely you can! You are able to make payment via Paypal without a registered account although we do recommend you to sign up for it to enjoy the added ease of use.
Without a Paypal account, all you need is any Debit/Credit card stated below that is supported by Paypal. Paypal is the easiest & most secure way to make payment online.
For more details, click here to see how Paypal works for you.