What has many keys but can’t open a single lock?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

In the given picture, in how many ways can you read the word "Tiger"?

Can it be possible to build a house that has all its four walls facing towards the South?

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Can you find the thief by just looking at the picture below?

I have no life, but I can die. What am I?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?