Are there any fatwas or pages on your website that provide a summary of Islamic creed for non-Muslims in both Arabic and English?

We do not have a fatwa (definition) that summarizes the entire Islamic creed. The questioner can review the fatwas related to matters of creed through the thematic presentation of fatwas at the attached link. Among the useful and concise books on this topic are: "Al-Aqeedah As-Saheehah wa ma Yudhadduha" (The Correct Creed and What Opposes It) and "Usul Al-Iman" (Foundations of Faith) by Ibn Baz, "Nabdah fi Al-Aqeedah Al-Islamiyah" (A Brief Overview of Islamic Creed) by Al-Uthaymeen, and "Al-Tareeq ila Al-Islam" (The Path to Islam) by Al-Hamad. All of these are available online.