Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

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

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

You can hear me, but you can't touch or see me.

What am I?