Need help with Cryptography Please

Question 1 A)

You intercept some ciphertext sent from Fred to Farah: e w n w l g p p

You also know that Fred sent the following 4 numbers per SMS to Farah: 8, 70, 2, 89. What is the message sent from Fred to Farah

B)

You find a message containing some ciphertexts which represent three words: oeryltpfkqwap

By chance you also know that the sender uses simple substitution cipher with a four-letter-words of key, starts from a capital f. This gives the first plaintext to be bid. Retrieve the key and the whole plaintext of this message.

(Hint: The encoder has removed the blanks between the ciphertext)