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

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Identify The phrase in the picture.

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

What is the difference between a jeweller and a jailer?

What is the next number in this matchsticks series riddle?

Count the Triangle in the figure given below:

What can go through glass without breaking it?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?