1. In a group of 5 friends, if Tom is shorter than Mike, Mike is taller than Sarah, and Sarah is taller than Jack, who is definitely not the shortest?

2. In a certain code, TREE is written as 2355 and LEAF is written as 8541. How would FEEL be written in this code?

3. In a family, there are six members A, B, C, D, E and F. A is married to B. C is A's son. D is C's wife. E is D's daughter. F is B's brother. How is F related to C?

4. In a line of people, John is 7th from the left and 4th from the right. How many people are in the line?

5. In a race, Alice finished after Bob, Charlie finished before David, and Bob finished before Charlie. Who finished last?

6. If all roses are flowers, and some flowers fade quickly, which of the following statements must be true?

7. If all A are B, and some B are not C, which of the following must be true?

8. In a family, John is older than Mary, Mary is younger than Peter, and Susan is older than John. Who is the youngest?

9. If some X are Y, and all Y are Z, which of the following must be true?

10. In a line of people, Mark is 4th from the left and 7th from the right. How many people are in the line?