The more of this there is, the less you see. What is it?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

If 21x = 79x, what is the value of x?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?