A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

If 1+9+8=1, what is 2+8+9?

Can you make a six-letter word using the letters N, A and B ?

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.

In the image given, you can find several triangles. Can you count them all?

What does an Island and the letter T have in common?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Find out the missing number in the picture attached: