Who can jump higher than a Mountain?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What four weights can be used to balance from 1 to 30 pounds?

I know a nine-letter word having only one vowel.
Do you ?

How many Watermelons are there in the below picture?

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

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

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?