What is the word or phrase?

Decode below rebus
D
N
A
T
S , D

What is the word or phrase below?
R | E | A | D

If 21x = 79x, what is the value of x?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

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?

How could a baby fall out of a twenty-story building onto the ground and live?

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

Why do we preferably have round manhole covers and not square ones?