the hard quiz

What is the answer

• 6.89

• 4

• 8

• 9.45

Find the 21 digit of pi

• No

• No

• No

• No

Solve this

• 2

• 8

• 1

• 4

Solve this

• 6

• 3

• 9

• 8

What is this

• 4

• Not 4

• 9

• 0.6