What is the relationship between the letters samekh and sin? Did they ever have distinct sounds? Why do they exist as separate letters?
Which letter of the alef-beis isn't found in bentching and what is its significance?
Can it hurt to include Nekudos (vowel marks) when typing Hebrew? Do all systems that support Hebrew lettering automatically support Nekudos? If not, do they at least degrade gracefully?
Avarham Avinu was originally Avram - and Hashem added the letter Hai to his name and changed it to Avraham. Why from all letters was the letter Hai added?