I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What does below chemistry rebus means?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?