What is the word or phrase?

What has no start, end, or centre?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

How can you make a TV, a bed, a dog, and a car liquid?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

Can you find the missing piece of the Porsche?