What is so fragile that saying its name breaks it?

What is the word or phrase?

Keyboard words are not in alphabetical order, Why?

Find the missing letter in the last circle logically in the given below picture.

Too much grey makes things difficult. However, your task here is to find the elephant hidden in the picture.

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

What is always in front of you but can’t be seen?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.