What does this rebus mean?

O
N
C
E
TIME

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Using eight eights and addition only, can you make 1000?

Can you find the key in the picture below?

Solve the mathematical equation in the picture below.

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

I purchased an awesome ice cream cone having 5 different flavour scoops.
Five flavours are pistachio, mint-chip, strawberry, marshmallow, and raspberry

I will give u some clues so that you can figure out the order of flavours from bottom to top.
1. The bottom flavour of the cone has 10 letters.
2. The marshmallow scoop is between the pistachio and the mint-chip scoop.
3. marshmallow is the raspberry scoop but below the mint-chip scoop.

So can you figure out the flavour of ice cream in order from bottom to top?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?