Brain teasers puzzels riddles cryptograms

Are you smart ? Do you have what it takes ? If yes then answer my riddles and win for yourself Airtime!!!

Please Note: we only support networks in Nigeria only . ie : glo , mtn , airtel and etisalat.
Answer all 10 Riddles which range from : mathematical , logic , verbal cunning and some are just plain silly. Only one winner is needed so hurry!!!

1. Am a letter , when you use other letters to form a word they still sound like me. What letter am i ?

2. Mom and dad have four daughters , and each daughter has one brother. How many people are in the family?

3. What English word retains the same pronuniciation, even after you take away four of its five letters?

4. If i say "Everything i tell you is a lie, "am i telling you the truth or a lie ?

5. I have a mouth but i can not crew . What am i ?

6. Food can help me survive , but water will kill me. What am i ?

7. What row of numbers comes next in this series? 1
11
21
1211
111221
312211
1311
2221

8. Am a place you you pass through and after you are through with me i will give you a paper . What am i ?

9. Akpos walk into my class and said: how i wish yesterday is tomorrow, today would have been friday. Which day did akpos enter my class?

10. I am like a witch's brew, i make people do what they don't want to do , at the sound of my voice ,they have no choice but to do what is requested of you. What am i ?

input your answers in the message box below(follow the steps). Only 10 people are needed for this challenge and only One winner.#200 naira recharge card any network in Nigeria.

Questions :