My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

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

What am I?

I have feet, but no legs. Which animal Am I?