What do you get if you add 2 to 100 four times?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

How many times can you subtract the number two from the number fifty?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What can you hold in your right hand, but never in your left hand?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

There are five men, let's say Tarun Harish Lavesh, Manoj, and Manish. All of them have a dot mark on their forehead. They can't see the dots on their forehead but can see the ones on others. The owner of WHITE Dot is an honest person and will never lie, while the owner of BLACK Dot always tells the lie.

This is the statement from Tarun Harish Lavesh and Manish:
Tarun: 'I see 3 whites and 1 black'
Harish: 'I see 4 black'
Lavesh: 'I see 3 black and 1 white'
Manish: 'I see 4 white'

What colour is the dot on each of Tarun Harish Lavesh, Manoj, and Manish's forehead?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?