The first riddle (3) says: "A Mouse Has One Snout But A Hand Has Five"
Solution:
Place five fingers onto the iPad screen
The second riddle (11) in an anagram, move letters around until you get the right words.
Solution:
Persistence Without Patience Is A Golden Harp Missing Its Chord
The third riddle (24) is a replacement cipher. You just need to figure out by how many letters to shift.
Solution:
An Error At The Function Cipherscreen Line Ten Expected Semicolon
The fourth riddle (31) is a transposition cipher.You must arrange the letters in a set number of columns to reveal the answer.
Solution:
Hahaha Or Laughing Or Laughter Or Success Or Hello World
I have the fifth riddle (45) but I have yet to solve it.