Prove that the below maths equation is true.

8 + 8 = 91

How can you tell a raw egg from a hard-boiled egg?

How can you make number one disappear by adding something to it?

Why 1729 is a magic number? Answer Logically.

What does below Rebus mean ?

esgg sgeg gegs gsge

What number divided by 4 is the same as that number minus 4?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
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?

What seven-letter word has hundreds of letters in it?

A gardener planted the Lemon trees in a mathematical ordered way (i.e. he planted a tree in rows).
He created a total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees?