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

I have teeth but i don't bite. Who Am I ?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

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.

What number comes next in the series?

5 15 5 18 5 24 14 20 _

What Deficiency does the below rebus represent?

VIT_MIN

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

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?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?