What is wrong in the below Picture?

Replace the question mark with the correct number in below Picture:

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

I have eight fingers and two thumbs but I do not live. What Am I?

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

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

In a certain bank, a man deposits a certain amount. According to the bank policies, the amount will be doubled up in a year but as the service charge, they will also deduct Rs. 65 by the end of every year.

If after the 6th year, the amount becomes 0, what do you think is the original amount he deposited in the bank?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

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