Logic Riddles

Question: what is small but can save things that do not weight anything in it?

Question: I was going to St. Ivor when I came across a man with 7 wives and the wives had 7 sacks and in those 7 sacks were 7 kittens and with those kittens were 7 kits. How many went to St. Ivor?

Question: Disgusting and small, we wriggle through your halls, devouring books, cloths and walls. Alone we are feeble, together we have some might, glinting in our damp holes at night. What are we?

Question: There is a.. Cat Bird Snake Monkey Buffalo Kangaroo ? What could be next??

Question: You come to a cross road and see a man with two heads. A sign tells you that one head always tells the truth and the other one always lies. The sign also tells you that one road leads to life and posterity while the other leads to certain death. Now the hard part. You can only ask ONE head ONE question. What do you ask? Which road do you take? Hint: One head knows what the other will tell you.