When can we add 2 to 11 and get 1 as the correct answer?

Can you arrange the six given marbles in a manner that each one of them is touching all four marbles of different colours?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

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

What is the word or phrase?

The pound is not a finish.

We are sharing a few instructions below, which you have to use in any suitable order to modify the above sentence such that the end sentence is a scientific fact.

- Eliminate a letter and supplement another in its place.
- Take away one word.
- Remove one letter from one word.
- Get rid of two letters from one word.
- Swap a word with its antonym.

Too much grey makes things difficult. However, your task here is to find the elephant hidden in the picture.