Can you fill the blank with the correct number?

6 30 870 756030 _____

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

You can see it everyday, But cannot touch it at will. What is it?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Can you find a number that lies one third of the distance between 1/3 and 2/3?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

Who is that with a neck and no head, two arms and no hands? What is it?