Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

If 21x = 79x, what is the value of x?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Find the number of squares in the below-given picture.

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Why do you find that most of the buildings are deprived of the 13th floor?

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 ?

Count the number of triangles in the below picture?

Below rebus represent famous DiCaprio movie. Can you name it?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?