Replace the question mark with the correct number in below Picture:
You measure my life in hours I serve you by expiring I vanish faster when I am thin and slower when I am thick The wind is my energy What am I?
A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?
In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?
Which point will the car reach to go out?
Can you find the key in the picture below?
What has a bottom at the top?
How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?
I shave every day, but my beard stays the same. What am I?
A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result. Can you find how bias is the floor in this case?
What month of the year has 28 days?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.