What is next number in the pattern below:

131 517 192 123 ?

What is black when you buy it, red when you use it, and gray when you throw it away?

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.

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

I’m tall when I’m young, and I’m short when I’m old. What am I?

A car is crossing a 20 km-long bridge. The bridge can support at most 1500kg of weight over it. If somehow, the weight on the bridge becomes more than that, it will break.

Now, the weight of the car is exactly 1500kg. At the midway, a bird comes and sits on the roof of the car. This bird weighs exactly 200 grams.
Can you tell if the bridge breaks at this point or not?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Can you replace the question mark with the correct number in the below table sequence?

Which city is three-fifths chick two third cat and 50% goat?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?