Simplify

1)

\sqrt{4} \times \sqrt{4}

4

2)

\sqrt{7} \times \sqrt{7}

7

3)

\sqrt{6} \times \sqrt{6} \times \sqrt{6}

6 \sqrt{6}

4)

\sqrt{11} \times \sqrt{2}

\sqrt{22}

5)

\sqrt{8}

2 \sqrt{2}

6)

\sqrt{7} \times 5 \times \sqrt{2}

5 \sqrt{14}

7)

4 \sqrt{8} \times \sqrt{2}

16

8)

5 \sqrt{27} \times 2 \sqrt{3}

90