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.

Hint: Say what you see.

Answer: Tent: Ten T.

Hint: Say what you see.

Answer: Ozone.

Oz on E.

Hint: Think about three hens first.

Answer: 24.

We are told that:

   1.5 hens will lay 1.5 eggs in 1.5 days.

We can double the chickens (which doubles the eggs):

   3 hens will lay 3 eggs in 1.5 days.

We can double the chickens again:

   6 hens will lay 6 eggs in 1.5 days.

We can now multiply the number of days by 4 (which multiplies the number of eggs by 4).

   Therefore 6 hens will lay 24 eggs in a 6 days.