Can you find a five letter word that is left with only two letters if one is removed?

Prove that the below maths equation is true.

8 + 8 = 91

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?

You need to arrange three 7 and mathematical symbols to form number 1?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?