The source for the sounds of the shofar and the 100 blasts of the shofar on Rosh Hashana

Is Rosh Hashana a happy or sad day? Should we rejoice or be serious? Is crying appropriate during the tefillot of Rosh Hashana?

The enactments of Rabbi Yochanan ben Zakkai to commemorate the Beit Hamikdash- analyzing the removal of the strip of crimson wool on Yom Kippur

The mixup of the shir shel yom/song of the day in the Beit Hamikdash and we do not recite it at mincha

The message and symbolism of Moshe's hands in the battle with Amalek

The 3 categories of shofarot that may be used to fulfill the mitzvah of tekiat shofar- the speech of Rav Kook on Rosh Hashana 1934 warning of the darkening clouds over the heads of European Jewry

Blowing a shofar into a pit- application to reading the megilla, reciting havdala, listening to shofar using a microphone, telephone or video conference, and hearing aids

The principle of 'ein kateygor naaseh saneygor'- the prosecutor cannot become the accuser- application to a Kohen who kills someone while driving- may they still give the Kohen blessing?

The power of the court in establishing the new month- comparing leaders from different generations in Jewish history

Kiddush Levana that is recited when seeing the moon through glasses or a window