[Answer] The number in which brand name was picked simply because its creator thought it was “lucky”?

Step 1 : Introduction to the question "The number in which brand name was picked simply because its creator thought it was “lucky”?"

...Heinz 57 is a shortened form of a historical advertising slogan "57 Varieties of Pickles" by the H. J. Heinz Company. It was developed from the marketing campaign that told consumers about the numerous pickle products available from the Heinz company. But why the number 57? Heinz said he chose "5" because it was his lucky number and the number "7" was his wife's lucky number. The first product to be promoted under the "57 varieties" slogan was prepared horseradish. In 1876, they introduced the product now most famously associated with Heinz: tomato ketchup.

[Answer] What is the official name of the border between the U.S. and Canada?

Step 1 : Introduction to the question "What is the official name of the border between the U.S. and Canada?"

...The longest, straightest stretch of the border between the United States and Canada runs along the 49th Parallel. The remainder of the border is not perfectly straight and it doesn't follow strictly along the 49th Parallel. This famous border, marking the northern boundary for the U.S. and the southern boundary for Canada, is officially known as the International Boundary. It is the world's longest international border and one of the more twisted. It zig-zags along 900 miles of boundary line. Source: WorldAtlas.com