You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

How many words can a pen with half refill write?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Out of four images which one is the odd one out?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

Which number comes next in the number series?

2, 9, 30, 93, ?

Why is it very easy to weigh a fish?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?