Tongue Twisters Tournament

These are some Tongue Twisters in English, Try to speak these as fast as you can 2 times each, Do not cheat and tell me how much time you take to complete these with honest. Thank You! and my score is 16.9 highest.

Tongue Twisters :

1.Sheena leads, Sheila needs.

2. If a dog chews shoes, whose shoes does he choose?

3.Top chopstick shops stock top chopsticks.

4.Thirty-three thousand feathers on a thrushes throat.

5.The great Greek grape growers grow great Greek grapes.