Website from scratch with design and development and mobile friendly

General information for the website: quiz and opinion poll website
Kind of development: New website from scratch
Description of requirements/features: admin can make polls and post for users to vote
social sharing of polls to play
polls can be posted or embeded on social media such as facebook for vote and can be posted through email where people can vote without logging in but can register in continuation to get noted
social sharing of results when the poll ends
every poll will have an ending date and time
for example can look to opinion stage plugin of wordpress
need website in php or wordpress whichever is more safe in case of data and confined to limitations
admin will set the time and date of the expiry or golive of the quiz shown to user
quiz can be explained with help of text or pictures and videos like youtube
multiple choice answers can be text or pics
users will be awarded prize points for answering which can be redeemed for gifts and mobile recharge or cash
there will be lucky draw prize too with almost every quiz. for e.g if 1000 users played a quiz then 1 lucky user through random selection can win an ipod or 100 dollars.
therefore a page has to be created where we can upload the prizes wth their photo and name from time to time from where, whenever we will create a quiz can attach a prize from pre feeded prizes.
Extra services needed: Hosting
Specific technologies required: php or wordpress
Extra notes: