Q1:
1. pour from 8-->5
2. pour from 5--> 3                
3. pour 3 back into 8
4. pour what's left in 5 into 3 
5. Pour from 8 --> 5 
6. pour from 5--> 3 

-Or-

Pour from 8 into 5 until the liquid just touches where the base of
the barrel meets the wall AND at the same time just reaches the upper
lip of the barrel (that will be half the volume).



Q2:
Divide the matzahs into 3 groups of 3 each.

- Take group #1 and group #2 and place them on the balance.

- if one group is lighter then take that group and place one of the three
matzahs on either side of the balance.

- if one is lighter, then you've found it.
- if they are even, then the third matzah is the lighter one.

- If group 1 and group 2 weigh the same, then the lighter one is in group 3.
Place two from that group on the balance, find the lighter one just as above.


Q3:
Silly question. An hour and fifty minutes is the same as 110 minutes.

Q4:
8 children.

Q5:
5 minutes.

Q6:
Lift cup #2 up and pour the wine into cup #5, then place cup #2 back down.