Premise: A lady pushes a stroller, behind a child, riding a tricycle, while another child walks along side.

Hypothesis: There are multiple people present.
yes

Premise: little boy in Cami crawling on brown floor

Hypothesis: The boy is a toddler.
it is not possible to tell

Premise: A young man with tattoos is holding a microphone as if he is speaking or singing.

Hypothesis: a young man holds a mic singing and speaking
yes

Premise: Two people jousting with lances and shields on horses while people watch from under a tent and outside of the tent.

Hypothesis: People are watching two people joust.
yes