Shemuel said to Rav Matna, "Don't sit down until you have explained the following lesson to me!": Makkot 3b
Spoke publically using the word "Shelanu" to mean "that stayed overnight" and was misunderstood to mean "ours": Pesachim 42a
How he began his teaching of the Purim Story: Megillah 11a
Rav Yehudah bar Oshia was asked for a ruling and didn't have an answer. The question went to Rav Matnah, who also did not have an answer. The question then went to Rav Yehudah, who answered it: Eruvin 80a
