Premise:
"And how exactly will Alexander manage to finish second or third in Iowa and New Hampshire?"
Hypothesis: ''Alexander isn't competing in New Hampshire''

no

Premise:
"There is no representation of the Buddha in this early era."
Hypothesis: Buddha's representation had been around for centuries already.

no

Premise:
"It is not unusual to find, as in old Melaka, Buddhist and Hindu temples on the same street as a mosque."
Hypothesis: Temples of a variety of religions can be found near each other.
yes