In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

Take away the whole and some still remain. What is it?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

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

What brings you down but never up?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

What is more useful when it is broken?

There is something which is always coming but never arrives?