27. Five Pillars: Repetition of the Creed, Daily Prayer, Alms Giving, Fasting, and Pilgrimage.
From Quiz Glossary of World Religions
Answer:
Islam
The Creed is "There is no god but God; Muhammad is the messenger of God."
Muslims are expected to pray five times daily; the five accepted times are dawn, midday, mid afternoon, sunset, and nightfall.
Muslims are expected to share their possessions with the poor, widows, and orphans. Alms may also be used to support religious institutions, scholars, and students.
Islam requires the longest and most stringent fast of all known religions. Each year during the month of Ramadan, Muslims are expected to abstain from eating, drinking, smoking, and engaging in sexual relations during the daylight hours. This fast is kept in remembrance of the month when Muhammad first received his revelation.
Pilgrimage to Mecca is required of all Muslims in their lifetime granting they can afford the trip. This pilgrimage takes place during the month of Dhu al-Hijah.