Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

In a guessing game, five friends had to guess the exact numbers of apples in a covered basket.
Friends guessed 22, 24, 29, 33, and 38, but none of the guesses was correct. The guesses were off by 1, 8, 6, 3, and 8 (in random order).

Can you determine the number of apples in a basket from this information?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

What does this mean?

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What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

What does below pictogram mean?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?