We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?
Nine marbles are arranged in the image below. Can you slide two marbles to form a square?
Using Only Five 5's and any mathematical operator make sum as 37
Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?
Can you count the number of squares in the given picture?
