In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly
If a wheel has 54 spokes, how many spaces are there between the spokes?
Replace the question mark with the correct number in the below-given picture?
Which wheel of car does not rotate when you turn your car right?
How many times can you subtract the number 5 from 25?
You need to move three matchsticks to form three squares. Can you do it?
Why are all black people so quick ?
By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"
Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?
The following "Brain Bat" means Slow Down.
S
L
O
W
Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G
In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.