Random Puzzles 

Workings

Hint
Look at every third letter.

Answer
The BrainBashers electronic word processor has been playing up.

It is replacing every third letter with an a. What should this paragraph read?

Workings

Hint
Start by filling the 11 gallon container.

Answer
Here are the contents of the containers after each stage:
A  B
0  11  fill B
7  4   fill A from B
0  4   empty A
4  0   fill A from B
4  11  fill B
7  8   fill A from B
0  8   empty A
7  1   fill A from B
0  1   empty A
1  0   fill A from B
1  11  fill B
7  5   fill A from B
0  5   empty A
5  0   fill A from B
5  11  fill B
7  9   fill A from B
0  9   empty A

This leaves 9 gallons in container B.

Workings

Hint
The first word ends with the letter A.

Answers
pnd    = panda frrt   = ferret s ln   = sea lion hdghg  = hedgehog chth   = cheetah tdpl   = tadpole ttr    = otter plr br = polar bear lprd   = leopard grff   = giraffe

Workings

Hint
How many statements would be true if the culprit was Alex?

Answer
Emery committed the crime.

Reasoning
If we assume that Alex was the culprit, we can see that there would be 6 true statements, but we know there were exactly 5 true statements, so it can't be Alex.

We can repeat this will all five suspects and quickly see that only Emery being the culprit would result in exactly 5 statements being true.