What is the sum of all prime numbers between 50 and 100?
First, let's list down all the prime numbers between 50 and 100:

53, 59, 61, 67, 71, 73, 79, 83, 89, 97

Now, we simply add them up:

Sum = 53 + 59 + 61 + 67 + 71 + 73 + 79 + 83 + 89 + 97
    = 692

So, the sum of all prime numbers between 50 and 100 is 692.