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

Which Travels Faster? Solve below famous picture riddle:

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

I want to fill my bucket using both cold and hot water.
I have two taps for both cold and hot water. The hot water tap fills the bucket in exact 6 hours and the cold water tap fills the bucket in exact 4 hours.
I turn both of them simultaneously but I forgot to turn off another tap which removes the water out of the bucket. This tap can empty the bucket in 12 hours.

How Long will it take to fill the bucket?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?