How can one talk without saying a single word?

What kind of storm is always in a rush?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What is the next number in the series?

15 29 56 108 208 ?

A sundial has the fewest moving parts of any timepiece. Which has the most?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

John speaks the truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks the truth?