You need to arrange three 7 and mathematical symbols to form number 1?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

What work can one never finish?

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?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

What do you call a fish without an eye?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?