If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

How will you distribute the gems between the sacks so that the odds of picking a Blue gem are maximum?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

What is harder to catch the faster you run?

Can you write down eight eights so that they add up to one thousand?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

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?

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 ?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

By what process could you make a 'Tea-Table' into food?