How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Below, you can see three complete equations and one incomplete. Based on the three complete ones, can you complete the incomplete one?

5 $ 4 $ 3 $ 9 = 4215
6 $ 9 $ 2 $ 6 = 3816
4 $ 7 $ 3 $ 3 = 1122
7 $ 2 $ 7 $ 4 = ____

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

What can go through glass without breaking it?

Which of the below owl is odd one out?

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

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?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

Can you find out which number multiplied by itself will give the output as 12345678987654321?