Is fidyah required for someone who breaks their fast due to a valid excuse?
● If the excuse is permanent, such as a chronic illness with no hope of recovery or old age, then fidyah is required. This means feeding one needy person for each missed fasting day.
● However, if the excuse is temporary, such as menstruation, postnatal bleeding, or a temporary illness, then only making up the missed fasts (qada) is required, and fidyah does not apply.
Someone wiped over his shoes after wearing them in a state of purity, then took them off and prayed without them?
Ablution is not invalidated by taking off leather socks or shoes after wiping over them. However, whoever takes them off after wiping must wash his feet only. If he prayed without washing his feet, he must wash his feet and repeat the prayer. And Allah the Almighty knows best.
Which hour coincides with the last third of the night?
This hour could be figured out by calculating the number of night hours which start at sunset, and end at dawn break, then the total is divided on three to get the result.
Can I start fasting based on the moon sighting of another country?
You must follow the moon sighting of the country you are in.