What Adam and Eve do not have but the rest of the people have?

Can you decipher the below rebus?

PBLUESAISNUERSES

Before Mount Everest was discovered, what was the highest mountain in the world?

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 the below rebus means?

10+10 and 11+11 can give you the same answer.

Explain how?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

You walk into a room and see a bed. On the bed, there are two dogs, five cats, a giraffe, six cows, and a goose. There are also three doves flying above the bed. How many legs are on the floor?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

What does the below rebus riddle means?