You need to arrange three 7 and mathematical symbols to form number 1?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Decode below rebus
D
N
A
T
S , D

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

What month of the year has 28 days?

What is the word or phrase?

What do you call a fish without an eye?