What is so fragile that saying its name breaks it?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

What is the largest number you can write with just 3 digits?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What occurs twice in a week, once in a year but never in a day?

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

If eleven plus two equals one, what does nine plus five equal?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?