What is the fastest way to double your money?

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

From a pack of 52 cards, I placed 4 cards on the table.

I will give you 4 clues about the cards:

Clue 1: Card on left cannot be greater than the card on the right.
Clue 2: Difference between the 1st card and 3rd card is 8.
Clue 3: There is no card of an ace.
Clue 4: There are no face cards (queen, king, jacks).
Clue 5: Difference between the 2nd card and 4th card is 7.

Identify four cards?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Can you count the number of matches in the picture below ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Can you make four (4) nines (9) equal 100?

Can you find out the remainder when 3^300 is divided by 5?

How is the moon similar to a dollar?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?