It is always ahead of me yet I can never see it. What is it?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

How many Watermelons are there in the below picture?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Be active and find the killer in the picture Riddle below.

There was once a troop of 5 elves. The 5 elves were very dedicated on finding the magical treasure of 1000 coins. However, being elves, they were super geniuses, very greedy and they did not hesitate in taking lives of other elves. The 5 elves were named Aye, Bee, Cee, Dee and Ee, ranked from high to low respectively, from Aye to Ee. One fine day, their efforts brought results and they found 1000 coins. Now they had to split it in between them as per their ranks. The lowest ranked elf has to make the proposal. If the proposal is accepted by majority, it is agreed, or the suggesting elf is killed.

What proposal should elf Ee make ?

What is more useful when it is broken?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?