Medium Puzzles 

Workings

Hint
Try removing the first letter.

Answer
Carrot.

Each of the other words remains a real word if you remove the first and last letter:
s-event-y
b-raw-l
c-love-r
p-rope-r
s-win-g
c-hang-e
t-rave-l
s-acre-d
s-ton-e

Workings

Hint
If Alex had committed the crime, how many lies would there be?

Answer
Chris committed the crime.

Reasoning
We know that exactly 4 lies were told.

If it was Alex, then 3 lies would have been told (by those who said it wasn't Alex).

If it was Billie, then 2 lies would have been told.

If it was Chris, then 4 lies would have been told.

If it was Drew, then 3 lies would have been told.

If it was Emery, then 3 lies would have been told.

If it was Frankie, then 3 lies would have been told.

Double-Checking
Since it was Chris, there were 14 truths, and 4 lies, for a total of 18 clues.

Workings

Hint
The 8-letter word begins with the letter G.

Answer
Generous.
LEND = LE + GE + ND = LEGEND

LIAR = LI + NE + AR = LINEAR

PALE = PA + RO + LE = PAROLE

COIN = CO + US + IN = COUSIN

Workings

Hint
Who is the oldest?

Answer
# Name    Age
1 Drew    youngest
2 Blake   next to the youngest
3 Alex    next to the oldest
4 Hayden  oldest

Reasoning
If we label the clues:

C1: Hayden was fourth.
C2: Alex was not the oldest, but was older than Drew, who was not second.
C3: The child who was next in age to the youngest, finished second.
C4: The child who finished in third place was older than the child who finished first.
C5: Blake was younger than the child who finished in third place.

Using C2 Alex was not the oldest.
Using C2 Drew was not the oldest.
Using C5 Blake was not the oldest.

Therefore, Hayden was the oldest (and using C1 came fourth).

Using C4 the youngest didn't come third, and using C3 the youngest didn't come second.

Therefore, the youngest came first.

Using C3 the next to youngest came second, leaving the next to oldest in third.

Using C2 since Drew wasn't second (nor fourth), and Alex was older than Drew, Drew must have come in first.

Using C5 Blake didn't come third, so came second.

Leaving Alex in third.