Solution:

All other shapes are quadrilaterals, while a hexagon has six sides.

Solution:

29

Jacob standing on the middle rung.
He goes up 6 rungs so he is now at M+6 and when he goes down 10 rungs so he is at M-4.
Jacob goes up 18 rungs so he is now at M+14 = T

14 rungs from the top, 14 rungs from the bottom, and the middle rung. 14+14+1=29

Solution:

3

The total sum is always 17.

Solution:

9

4x + 21 = 57
4x = 36
x = 9

Solution:

30

Explanation:
As you can see the lower number rows are always bigger than upper row ones with the difference going up by 3 with every step

34 - 32 = 2
32 - 27 = 5 (difference going up by 3 from last difference)
56 - 48 = 8 (difference going up by 3 from last difference)
? - 19 = 11 (difference going up by 3 from last difference)
so ? = 30

Solution:

180

Solution:

2

36 - 6 / (1/6) + 2
= 36 - 6 * 6 + 2
= 36 - 36 + 2
= 2

Solution:

4100.

In a survey conducted 1/5 has written answer ar 5000.

1000 + 40 = 1040
1040 + 1000 = 2040
2040 + 30 = 2070
2070 + 1000 = 3070
3070 + 20 = 3090
3090 + 1000 = 4090
4090 + 10 = 4100 ... The answer

Solution:

58

Solution:

Carriage

Explanation:
2Car + 3Carriage = 2 Bus ........(1)
2Car + 1Carriage = 1 Bus + 1Carriage ..... (2)
1 Bus + 1Car + 1Carriage = 3car + ?

From Statement 2 ,
2Car = 1Bus
From Statement 1 ,
2Car + 3Carriage = 2 Bus
1Bus + 3Carriage = 2 Bus
=> 3Carriage = 1Bus
Hence
The Carriage = 2, the Car = 3 and the Bus = 6