Before Mount Everest was discovered, what was the highest mountain in the world?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

I have branches, but no fruit, trunk or leaves. What am I?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

The world's largest Thanksgiving turkey was on display at a fair. Everyone was admiring it when suddenly a woman ran up and shot the turkey and left. Everyone knew her yet nobody made any attempts to stop or report her. Why?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?