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.

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

who is silent in the parliament?

I cannot talk, but I always reply when spoken to. What am I?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can anyone tell me a word in the English dictionary which has a silent 'z'?