There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

What does this rebus riddle means ?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

How can you tell a raw egg from a hard-boiled egg?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.