Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

Find the value of "?" in the ball picture Riddle below:

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

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

You can hear me, but you can't touch or see me.

What am I?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___