What is the future value on Dec 31 2019 of 10 cash flows of 20000 with the first cash payment made

What
is the future value on Dec 31 2019 of 10 cash flows of 20000 with the
first cash payment made on Dec 31, 2010 and interest at 10% being
compounded annually?

What
is the future value on June 30, 2020 of 20 cash flows of 15000 with the
first cash payment made on Dec 31, 2010 and the annual interest rate of
10% being compound semiannually?

What
is the future value on Dec 31, 2020 of 20 cash flows of 15000 with the
first cash payment made on Dec 31, 2010 and the annual interest rate of
10% being compounded semiannually?