I have thought of a number that is made up by using all the ten digits just once. Here are a few clues for you to guess my number:

First digits is divisible by 1.
First two digits are divisible by 2.
First three digits are divisible by 3.
First four digits are divisible by 4.
First five digits are divisible by 5.
First six digits are divisible by 6.
First seven digits are divisible by 7.
First eight digits are divisible by 8.
First nine digits are divisible by 9.
The number is divisible by 10.

Can you find out the number ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Find out the number of circles in the given picture having Illusion

Can you calculate the probability of getting a sum of six when a dice is thrown twice?