What do you call a fish without an eye?

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

Replace the question mark with the correct number.

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Find out the missing number in the picture attached:

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

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

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

I am the fastest animal but cannot climb the tree. What am I?