The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

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.

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

There was a strange boy who was born before his father. How can this be possible?

I look at you, you look at me I raise my right, you raise your left. What am I?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99