$1-15.*$ Using three bits, show the binary counting sequence from $000$ to $111.$

$1-16.$ Using six bits, show the binary counting sequence from $000000$ to $111111.$

$1-17.*$ What is the maximum number that we can count up to using $10$ bits?

$1-18.$ What is the maximum number that we can count up to using $14$ bits?

$1-19.^$ How many bits are needed to count up to a maximum of $511?$

$1-20.$ How many bits are needed to count up to a maximum of $63?$