If a Teacher writes all of the numbers from 300 to 400 on the black board how many will she write the number 3 ?
120 times.
Weekly Mind Bender
In the middle of a round pool lies a beautiful water lily. The water lily doubles in size every day. After exactly 20 days, the lily will cover the complete pool. How many days until the water lily covers exactly 1/2 the pool?
19 days.
Weekly Mind Bender
Can you solve the following?
T M C
A U O
H S M
W T E
What goes up, must come down.
Weekly Mind Bender
The more you work, the more I’ll eat.You keep me full, I’ll keep you neat. What am I?
A pencil sharpener.
Weekly Mind Bender
What mathematical symbol can be placed between 5 and 9, to get a number greater than 5 and smaller than 9?
A decimal point (5.9).
Weekly Mind Bender
You are trying to get dressed. Unfortunately, the power is out and it is pitch black, so you cannot see a thing. You know that your sock drawer contains exactly 10 white socks and 10 black socks, but they are mixed together.
How many socks in total must you take to guarantee a matching pair?
You must take 3 socks. If the first two are not a match, the third will match one of them.