Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

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

Explain how?

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 ?

What does below pictogram mean?

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

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S.

Dempsey: What time is it?
Donovan: Wow, It is the same time here.

How is this possible?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Which city is three-fifths chick two third cat and 50% goat?