Hello I need some help with these questions.

Question

A survey of 115 children found that

39 liked The Little Mermaid

43 liked 101 Dalmatians

56 liked Mickey Mouse

7 liked The Little Mermaid and 101 Dalmatians

10 liked The Little Mermaid and Mickey Mouse

16 liked 101 Dalmatians and Mickey Mouse

4 liked all three

Question 1: How many students liked ONLY 101 Dalmatians?
My answer 24

Question 2: How many liked the Little Mermaid but NOT Mickey Mouse?
My answer 26

Question 3: How many students did NOT like Mickey Mouse?
My answer 50

Am I correct?
Thank you for your help!!