In an $8-$bit $2\text{'}$s complement system, an overflow occurs when the number of bits required for the result exceeds $8$ bits $($see $3\mathrm{.}3\mathrm{.}5).$ Select all of the following that should produce an overflow if there are only $8$ bits available for the result?

$($The numbers are shown in decimal$)$

$127+127$

$127+(-128)$

$64+64$

$(-64)+(-64)$

$63+64$

$(-63)+(-64)$