How Smart Are Yuu? (x=2.3947x66)

This is a quiz to test how smart yuu are. good luck...

1 Can you say your abc's backwards? (I can)
2 What is 20 times 5 minus 3 plus 7 divided by 15 and multiplied again by 6 (order of operations)
3 Quick.... Whats 1+1+1+1+1+1+1+1+1+1+1+1?
4 What is 4563 times 347???
5 FiNd Whaat Iz Wring With Thiss SENTENSE