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.

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

What is so fragile that saying its name breaks it?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

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

AB * C = DE - F = GH / I

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?