Firstly, I am quite new to indices in mathematics, though I am not sure about using fractions when it comes to pronumerals as well. So, any help is appreciated.

Simplify the following questions:

1. p^6q^4 divided by p^q

2. 8w^10 divided by 2w^4

3. 2x^6 multiplied by 5x, divided by 10x^4

4. (2g^2)^2

5. 20d^8e^6 divided by 2d^2e multiplied by 5d^2e^2

Thank you for your time. I shall be waiting!