what does this below rebus represent identXQQQQQME

Remove two matchsticks to make the below equation correct.

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Decode below rebus
D
N
A
T
S , D

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.

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain